| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.159" | 0.379" | 0.082" |
| #6 | 0.176" | 0.434" | 0.087" |
| #8 | 0.205" | 0.538" | 0.104" |
| #10 | 0.251" | 0.603" | 0.102" |
| #12 | 0.306" | 0.682" | 0.134" |
| 1/4" | 0.316" | 0.791" | 0.157" |
| 5/16" | 0.344" | 0.892" | 0.161" |
| 3/8" | 0.467" | 0.925" | 0.249" |
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.159" | 0.379" | 0.082" |
| #6 | 0.176" | 0.434" | 0.087" |
| #8 | 0.205" | 0.538" | 0.104" |
| #10 | 0.251" | 0.603" | 0.102" |
| #12 | 0.306" | 0.682" | 0.134" |
| #14 (1/4") | 0.316" | 0.791" | 0.157" |
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.159" | 0.379" | 0.082" |
| #6 | 0.176" | 0.434" | 0.087" |
| #8 | 0.205" | 0.538" | 0.104" |
| #10 | 0.251" | 0.603" | 0.102" |
| #12 | 0.306" | 0.682" | 0.134" |
| #14 (1/4") | 0.316" | 0.791" | 0.157" |
Finishing Cup Washer Silicon Bronze
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.159" | 0.379" | 0.082" |
| #6 | 0.176" | 0.434" | 0.087" |
| #8 | 0.205" | 0.538" | 0.104" |
| #10 | 0.251" | 0.603" | 0.102" |
| #12 | 0.306" | 0.682" | 0.134" |
| #14 (1/4") | 0.316" | 0.791" | 0.157" |
Compleate Information About Stainless Steel Finishing Cup Washers Washer
A 304 stainless steel flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size.
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.125" | 0.312" | 0.031" |
| #6 | 0.149" | 0.375" | 0.031" |
| #8 | 0.174" | 0.375" | 0.031" |
| #10 | 0.203" | 0.437" | 0.063" |
| #12 | 0.250" | 9/16" | 0.050" |
| 1/4" | 0.281" | 5/8" | 0.050" |
| 5/16" | 0.343" | 3/4" | 0.050" |
| 3/8" | 0.406" | 7/8" | 0.050" |
| 7/16" | 0.500" | 1-1/8" | 0.062" |
| 1/2" | 0.531" | 1-1/4" | 0.062" |
| 9/16" | 0.625" | 1-3/8" | 0.078" |
| 5/8" | 0.687" | 1-1/2" | 0.078" |
| 3/4" | 0.812" | 1-7/8" | 0.109" |
| 7/8" | 0.937" | 2" | 0.109" |
| 1" | 1.062" | 2" | 0.125" |
| 1-1/8" | 1.187" | 2-1/2" | 0.125" |
| 1-1/4" | 1.312" | 2-3/4" | 0.125" |
| 1-3/8" | 1.500" | 3-1/4" | 0.140" |
| 1-1/2" | 1.562" | 3-1/4" | 0.140" |
| 1-3/4" | 1.812" | 3-1/2" | 0.140" |
| 2" | 2.125" | 4" | 0.187" |
A 316 flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size.
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.125" | 0.312" | 0.031" |
| #6 | 0.150" | 0.312" | 0.031" |
| #8 | 0.174" | 0.375" | 0.031" |
| #10 | 0.203" | 0.437" | 0.031" |
| #12 | 0.250" | 9/16" | 0.050" |
| 1/4" | 0.281" | 5/8" | 0.050" |
| 5/16" | 0.343" | 3/4" | 0.050" |
| 3/8" | 0.406" | 7/8" | 0.050" |
| 7/16" | 0.500" | 1-1/8" | 0.062" |
| 1/2" | 0.531" | 1-1/4" | 0.062" |
| 9/16" | 0.625" | 1-3/8" | 0.078" |
| 5/8" | 0.687" | 1-1/2" | 0.078" |
| 3/4" | 0.812" | 1-7/8" | 0.109" |
| 7/8" | 0.937" | 2" | 0.109" |
| 1" | 1.062" | 2" | 0.125" |
| 1-1/8" | 1.187" | 2-1/2" | 0.125" |
| 1-1/4" | 1.312" | 2-3/4" | 0.125" |
| 1-3/8" | 1.500" | 3-1/4" | 0.140" |
| 1-1/2" | 1.562" | 3-1/4" | 0.140" |
| 1-3/4" | 1.812" | 3-1/2" | 0.140" |
| 2" | 2.125" | 4" | 0.187" |
A zinc plated steel flat washer is a round outer diameter plate with a hole in the center punched to the size of the bolt or screw size. Additionally, Flat Washers may be used to provide ease of movement for spinning parts, or when the hole holding the fastener assembly is larger than the finishing nut. Zinc plated steel flat washers are made of steel with a zinc plating to protect the fastener from environmental damage and increase durability
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #6 | 0.156" | 0.375" | 0.064" |
| #8 | 0.188" | 0.438" | 0.064" |
| #10 | 0.220" | 0.500" | 0.064" |
| #12 | 0.250" | 0.562" | 0.076" |
| 1/4" | 0.281" | 0.625" | 0.076" |
| 5/16" | 0.344" | 0.688" | 0.076" |
| 3/8" | 0.406" | 0.812" | 0.076" |
| 7/16" | 0.469" | 0.922" | 0.076" |
| 1/2" | 0.531" | 1.062" | 0.097" |
| 9/16" | 0.594" | 1.156" | 0.097" |
| 5/8" | 0.656" | 1.312" | 0.097" |
| 3/4" | 0.812" | 1.469" | 0.136" |
| 7/8" | 0.938" | 1.75" | 0.136" |
| 1" | 1.062" | 2" | 0.136" |
| 1-1/8" | 1.250" | 2.250" | 0.136" |
| 1-1/4" | 1.375" | 2.50" | 0.164" |
| 1-3/8" | 1.500" | 2.75" | 0.178" |
| 1-1/2" | 1.625" | 3" | 0.192" |
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| 3/16" | 0.250" | 0.56" | 0.064" |
| 1/4" | 0.312" | 0.734" | 0.069" |
| 5/16" | 0.375" | 0.875" | 0.086" |
| 3/8" | 0.438" | 1.00" | 0.086" |
| 7/16" | 0.500" | 1.25" | 0.086" |
| 1/2" | 0.562" | 1.375" | 0.112" |
| 9/16" | 0.625" | 1.469" | 0.112" |
| 5/8" | 0.688" | 1.75" | 0.136" |
| 3/4" | 0.812" | 2.00" | 0.148" |
| 7/8" | 0.938" | 2.25" | 0.164" |
| 1" | 1.062" | 2.50" | 0.164" |
| 1-1/8" | 1.250" | 2.75" | 0.164" |
| 1-1/4" | 1.375" | 3.00" | 0.164" |
| 1-3/8" | 1.500" | 3.25" | 0.183" |
| 1-1/2" | 1.625" | 3.50" | 0.183" |
| 1-5/8" | 1.750" | 3.75" | 0.183" |
| 1-3/4" | 1.875" | 4.00" | 0.183" |
| 2" | 2.125" | 4.50" | 0.183" |
| 2-1/4" | 2.375" | 4.75" | 0.221" |
| 2-1/2" | 2.625" | 5.00" | 0.245" |
| 3" | 3.125" | 5.50" | 0.288" |
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #2 | 0.099" | 0.250" | 0.031" |
| #4 | 0.125" | 0.312" | 0.031" |
| #6 | 0.150" | 0.312" | 0.031" |
| #8 | 0.174" | 0.375" | 0.031" |
| #10 | 0.203" | 0.437" | 0.031" |
| 1/4" | 0.281" | 5/8" | 0.050" |
| 5/16" | 0.343" | 3/4" | 0.050" |
| 3/8" | 0.406" | 7/8" | 0.050" |
| 1/2" | 0.531" | 1-1/4" | 0.062" |
| 5/8" | 0.687" | 1-1/2" | 0.078" |
| 3/4" | 0.812" | 1-7/8" | 0.109" |
Raaj Sagar Steels's is a leading metal stamping manufacturer of stainless steel flat washers. Stainless steel washers (also called corrosion resistant steel washers) will not stain, corrode or rust as easily as ordinary steel. With outside diameters of 0.080" to 5.140" and a wide variety of inside diameters, you have millions of stainless steel flat washer possibilities available.
Search stainless steel washers
Search below to identify tools in stock available for manufacturing your stainless steel washers in any quantity without a tooling charge. You can choose a thickness for precision stainless steel washers within the tool range indicated.
Search Results All measurements are given in inches
| OD | ID | Thickness Range |
|---|---|---|
| 0.990 | 0.510 | 0.025 - 0.040 |
| 0.994 | 0.508 | 0.090 - 0.105 |
| 0.994 | 0.500 | 0.090 - 0.100 |
| 0.995 | 0.500 | 0.070 - 0.090 |
| 0.995 | 0.494 | 0.005 - 0.010 |
| 0.997 | 0.508 | 0.050 - 0.070 |
| 0.997 | 0.503 | 0.030 - 0.050 |
| 0.998 | 0.509 | 0.005 - 0.010 |
| 0.998 | 0.508 | 0.090 - 0.110 |
| 0.998 | 0.506 | 0.005 - 0.125 |
| 0.998 | 0.504 | 0.030 - 0.060 |
| 0.998 | 0.503 | 0.030 - 0.125 |
| 0.998 | 0.501 | 0.040 - 0.060 |
| 0.999 | 0.505 | 0.005 - 0.010 |
| 1.000 | 0.510 | 0.060 - 0.083 |
| 1.000 | 0.508 | 0.180 - 0.190 |
| 1.000 | 0.508 | 0.005 - 0.015 |
| 1.000 | 0.507 | 0.020 - 0.187 |
| 1.000 | 0.506 | 0.010 - 0.020 |
| 1.000 | 0.505 | 0.030 - 0.050 |
| 1.000 | 0.504 | 0.010 - 0.110 |
| 1.000 | 0.502 | 0.126 - 0.187 |
| 1.000 | 0.502 | 0.005 - 0.125 |
| 1.000 | 0.501 | 0.030 - 0.105 |
| 1.000 | 0.500 | 0.005 - 0.062 |
| 1.000 | 0.499 | 0.005 - 0.010 |
| 1.001 | 0.508 | 0.005 - 0.105 |
| 1.001 | 0.505 | 0.015 - 0.025 |
| 1.001 | 0.504 | 0.005 - 0.030 |
| 1.001 | 0.503 | 0.005 - 0.100 |
| 1.001 | 0.500 | 0.010 - 0.020 |
| 1.001 | 0.494 | 0.005 - 0.010 |
| 1.002 | 0.507 | 0.010 - 0.020 |
| 1.002 | 0.505 | 0.005 - 0.010 |
| 1.002 | 0.504 | 0.100 - 0.125 |
| 1.003 | 0.508 | 0.005 - 0.010 |
| 1.003 | 0.498 | 0.005 - 0.015 |
| 1.005 | 0.510 | 0.025 - 0.040 |
| 1.010 | 0.510 | 0.015 - 0.030 |
| 1.010 | 0.506 | 0.005 - 0.010 |
| Washer Sizes | ID | OD | Thickness |
| #0 | 0.062" | 0.132" | 0.017" |
| #1 | 0.075" | 0.150" | 0.020" |
| #2 | 0.088" | 0.150" | 0.020" |
| #3 | 0.101" | 0.195" | 0.025" |
| #4 | 0.114" | 0.209" | 0.025" |
| #5 | 0.127" | 0.236" | 0.031" |
| #6 | 0.141" | 0.250" | 0.031" |
| #8 | 0.167" | 0.293" | 0.040" |
| #10 | 0.193" | 0.293" | 0.040" |
| #12 | 0.220" | 0.377" | 0.056" |
| 1/4" | 0.252" | 0.487" | 0.062" |
| 5/16" | 0.314" | 0.583" | 0.078" |
| 3/8" | 0.377" | 0.680" | 0.078" |
| 7/16" | 0.440" | 0.776" | 0.109" |
| 1/2" | 0.502" | 0.869" | 0.125" |
| 5/8" | 0.628" | 1.072" | 0.156" |
| 3/4" | 0.753" | 1.264" | 0.188" |
| 7/8" | 0.878" | 1.455" | 0.219" |
| 1" | 1.003" | 1.647" | 0.250" |
| 1-1/8" | 1.129" | 1.838" | 0.281" |
| 1-1/4" | 1.124" | 2.028" | 0.312" |
| 1-3/8" | 1.379" | 2.210" | 0.344" |
| 1-1/2" | 1.504" | 2.409" | 0.375" |
| Washer Sizes | ID | OD | Thickness |
| #4 | 0.114" | 0.209" | 0.025" |
| #6 | 0.141" | 0.250" | 0.031" |
| #8 | 0.167" | 0.293" | 0.040" |
| #10 | 0.193" | 0.293" | 0.047" |
| #12 | 0.220" | 0.377" | 0.056" |
| 1/4" | 0.252" | 0.487" | 0.062" |
| 5/16" | 0.314" | 0.583" | 0.078" |
| 3/8" | 0.377" | 0.680" | 0.094" |
| 7/16" | 0.440" | 0.776" | 0.109" |
| 1/2" | 0.502" | 0.869" | 0.125" |
| 9/16" | 0.564" | 0.965" | 0.141" |
| 5/8" | 0.628" | 1.072" | 0.156" |
| 3/4" | 0.753" | 1.264" | 0.188" |
| 7/8" | 0.878" | 1.455" | 0.219" |
| 1" | 1.003" | 1.647" | 0.250" |
| 1-1/8" | 1.129" | 1.838" | 0.281" |
| 1-1/4" | 1.124" | 2.028" | 0.312" |
| 1-3/8" | 1.379" | 2.210" | 0.344" |
| 1-1/2" | 1.504" | 2.409" | 0.375" |
| 2" | 2.125" | 4.000" | 0.387" |
Split Ring Lock Washer Hot Dipped Galvanized
| Sizes | Outer Diameter (OD) | Inner Diameter (ID) |
| 1/4" | 0.487" | 0.260" |
| 5/16" | 0.583" | 0.322" |
| 3/8" | 0.680" | 0.385" |
| 1/2" | 0.869" | 0.512" |
| 5/8" | 1.072" | 0.640" |
| 3/4" | 1.264" | 0.765" |
| 7/8" | 1.455" | 0.890" |
| 1" | 1.647" | 1.015" |
| 1-1/8" | 1.847" | 1.153" |
| 1-1/4" | 2.036" | 1.280" |
| 1-1/2" | 2.419" | 1.504" |
Split Ring Lock Washers Zinc Plated Steel
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #4 | 0.114" | 0.209" | 0.025" |
| #6 | 0.141" | 0.250" | 0.031" |
| #10 | 0.193" | 0.293" | 0.040" |
| #12 | 0.220" | 0.377" | 0.056" |
| 1/4" | 0.252" | 0.487" | 0.062" |
| 5/16" | 0.314" | 0.583" | 0.078" |
| 3/8" | 0.377" | 0.680" | 0.078" |
| 7/16" | 0.440" | 0.776" | 0.109" |
| 1/2" | 0.502" | 0.869" | 0.125" |
| 9/16" | 0.570" | 0.965" | 0.188" |
| 5/8" | 0.628" | 1.072" | 0.156" |
| 3/4" | 0.753" | 1.264" | 0.188" |
| 7/8" | 0.878" | 1.455" | 0.219" |
| 1" | 1.003" | 1.647" | 0.250" |
Split Ring Lock Washers Grade 8 Yellow Zinc
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| 1/4" | 0.252" | 0.487" | 0.062" |
| 5/16" | 0.314" | 0.583" | 0.078" |
| 3/8" | 0.377" | 0.680" | 0.078" |
| 7/16" | 0.440" | 0.776" | 0.109" |
| 1/2" | 0.502" | 0.869" | 0.125" |
| 9/16" | 0.564" | 0.965" | 0.141" |
| 5/8" | 0.628" | 1.072" | 0.156" |
| 3/4" | 0.753" | 1.264" | 0.188" |
| 7/8" | 0.878" | 1.455" | 0.219" |
| 1" | 1.003" | 1.647" | 0.250" |
| 1-1/4" | 1.124" | 2.028" | 0.312" |
| 1-1/2" | 1.504" | 2.409" | 0.375" |
| 1-3/4" | 1.773" | 2.679" | 0.389" |
| 2" | 2.125" | 4.000" | 0.389" |
Lock Washer Split Ring Black Oxide 18-8 Stainless Steel
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #2 | 0.094" | 0.172" | 0.020" |
| #4 | 0.120" | 0.209" | 0.025" |
| #6 | 0.148" | 0.250" | 0.031" |
| #8 | 0.174" | 0.293" | 0.040" |
| #10 | 0.200" | 0.334" | 0.047" |
| 1/4" | 0.260" | 0.487" | 0.062" |
| 5/16" | 0.322" | 0.583" | 0.078" |
| 3/8" | 0.385" | 0.680" | 0.141" |
| 1/2" | 0.512" | 0.869" | 0.171" |
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| 1/4" | 9/32" | 5/8", Max 0.630" - Min 0.5625" | Max 0.125" - Min 0.100" |
| 5/16" | 11/32" | 3/4", Max 0.760" - Min 0.700" | Max 0.125" - Min 0.100" |
| 3/8" | 13/32" | 7/8", Max 0.8750" - Min 0.8125" | Max 0.125" - Min 0.100" |
| 1/2" x 1-1/4" | 17/32" | 1-1/4", Max 1.252" - Min 1.248" | Max 0.125" - Min 0.100" |
| 1/2" x 1-1/2" | 17/32" | 1-1/2", Max 1.500" - Min 1.4375" | Max 0.125" - Min 0.100" |
| Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| 1/4" | 9/32" (0.281") | 5/8" (0.625") | Max 0.125" - Min 0.100" |
| 5/16" | 0.344" | 0.688" | Max 0.125" - Min 0.100" |
| 7/16" | 0.469" | 0.922" | Max 0.125" - Min 0.100" |
| 1/2" | 0.531" | 1.062" | Max 0.125" - Min 0.100" |
| 9/16" | 19/32" (0.594") | 1-5/32" (1.156") | 3/16" (0.1875") |
| 5/8" | 21/32" (0.656") | 1-5/16" (1.3125") | 3/16" (0.1875") |
| 3/4" | 13/16" (0.8125") | 1-15/32" (1.469") | 3/16" (0.1875") |
| 7/8" | 15/16" (0.9375") | 1-3/4" (1.75") | 3/16" (0.1875") |
| 1" | 1-1/16" (1.0625") | 2" | 1/4" (0.25") |
PRODUCT SPECIFICATIONS
Color Silver
Corrosion Resistant Yes
Material 304 Stainless Steel
Product Type Fender Washer
Tolerance (IFI)Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #6 x 5/8" | 0.149" | 5/8" | 0.031" |
| #8 x 3/4" | 0.174" | 3/4" | 0.040" |
| #10 x 11/16" | 0.203" | 11/16" | 0.040" |
| #10 x 3/4" | 0.203" | 3/4" | 0.040" |
| #10 x 1" | 0.203" | 1" | 0.040" |
| #10 x 1-1/4" | 0.203" | 1-1/4" | 0.040" |
| 1/4" x 11/16" | 0.281" | 11/16" | 0.050" |
| 1/4" x 1" | 0.281" | 1" | 0.050" |
| 1/4" x 1-1/4" | 0.281" | 1-1/4" | 0.050" |
| 1/4" x 1-1/2" | 0.281" | 1-1/2" | 0.050" |
| 1/4" x 2" | 0.281" | 2" | 0.062" |
| 5/16" x 1" | 0.343" | 1" | 0.050" |
| 5/16" x 1-1/4" | 0.343" | 1-1/4" | 0.050" |
| 5/16" x 1-1/2" | 0.343" | 1-1/2" | 0.062" |
| 5/16" x 2" | 0.343" | 2" | 0.062" |
| 3/8" x 1" | 0.406" | 1" | 0.050" |
| 3/8" x 1-1/4" | 0.406" | 1-1/4" | 0.050" |
| 3/8" x 1-1/2" | 0.406" | 1-1/2" | 0.062" |
| 3/8" x 2" | 0.406" | 2" | 0.062" |
| 1/2" x 1-1/2" | 0.531" | 1-1/2" | 0.062" |
| 1/2" x 1-3/8" | 0.531" | 1-3/8" | 0.062" |
| 1/2" x 2" | 0.531" | 2" | 0.062" |
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| #6 x 5/8" | 0.149" | 5/8" | 0.031" |
| #8 x 3/4" | 0.174" | 3/4" | 0.040" |
| #10 x 5/8" | 0.203" | 5/8" | 0.040" |
| #10 x 11/16" | 0.203" | 11/16" | 0.040" |
| #10 x 3/4" | 0.203" | 3/4" | 0.040" |
| #10 x 1" | 0.203" | 1" | 0.040" |
| 1/4" x 1" | 0.281" | 1" | 0.050" |
| 1/4" x 1-1/4" | 0.281" | 1-1/4" | 0.050" |
| 1/4" x 1-1/2" | 0.281" | 1-1/2" | 0.050" |
| 1/4" x 2" | 0.281" | 2" | 0.062" |
| 5/16" x 1-1/4" | 0.343" | 1-1/4" | 0.050" |
| 5/16" x 1-1/2" | 0.343" | 1-1/2" | 0.062" |
| 5/16" x 2" | 0.343" | 2" | 0.062" |
| 3/8" x 1-1/4" | 0.406" | 1-1/4" | 0.050" |
| 3/8" x 1-1/2" | 0.406" | 1-1/2" | 0.062" |
| 3/8" x 2" | 0.406" | 2" | 0.062" |
| 1/2" x 1-1/2" | 0.531" | 1-1/2" | 0.062" |
| 1/2" x 2" | 0.531" | 2" | 0.062" |
| Sizes | Inner Diameter (ID) | Outer Diameter (OD) |
| 1/8" | 3/16" | 9/16" |
| 1/8" | 3/16" | 3/4" |
| 1/8" | 3/16" | 1" |
| 3/16" | 1/4" | 3/4" |
| 3/16" | 1/4" | 1" |
| 3/16" | 1/4" | 1-1/8" |
| 3/16" | 1/4" | 1-1/4" |
| 3/16" | 1/4" | 1-1/2" |
| 1/4" | 5/16" | 1" |
| 1/4" | 5/16" | 1-1/4" |
| 1/4" | 5/16" | 1-3/8" |
| 1/4" | 5/16" | 1-1/2" |
| 1/4" | 5/16" | 2" |
| 5/16" | 3/8" | 1-1/4" |
| 5/16" | 3/8" | 1-1/2" |
| 5/16" | 3/8" | 2" |
| 3/8" | 7/16" | 1" |
| 3/8" | 7/16" | 1-1/8" |
| 3/8" | 7/16" | 1-1/4" |
| 3/8" | 7/16" | 1-1/2" |
| 3/8" | 7/16" | 1-3/4" |
| 3/8" | 7/16" | 2" |
| 1/2" | 9/16" | 1-1/4" |
| 1/2" | 9/16" | 1-1/2" |
| 1/2" | 9/16" | 1-3/4" |
| 1/2" | 9/16" | 2" |
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| 3/4" | 13/16" | 3" | 1/4" |
| 7/8" | 15/16" | 3-1/2" | 5/16" |
| 1" | 1-1/16" | 4" | 3/8" |
| Washer Size (ID) | Outer Diameter (OD) |
| #6 | 0.375" |
| #8 | 0.375" |
| #10 | 0.500" |
| #12 | 0.547" |
| #14 | 0.590" |
| 1/4" | 0.627" |
| 5/16" | 0.750" |
| 3/8" | 0.875" |
| 1/2" | 1.00" |
Fender Washers are used to prevent pull-though and provide a greater bearing surface under the fastener. This prevents nuts, bolts or screws from pulling through the base material. Extra Thick Fender Washers are much thicker than a standard Fender Washer (For Example a 1/4" x 1-1/4" Standard is 0.050 inches thick, whereas an Extra Thick is Max 0.125 - Min 0.100 inches). They can also be used to fasten holes that are too large or have rust around the edges.
Fender Washers are used to prevent pull-though, and provide a greater bearing surface under the fastener. This prevents nuts, bolts or screws from pulling through base material. Fender Washers are distinguished from standard flat washers by their significantly larger outside Diameter (or OD), which creates a larger surface area on the fastener assembly, allowing it to withstand more force. Fender Washers are commonly used to distribute load force on sheet metal, and gain their name from the use on car fenders. In the UK, Fender washers are also known as Penny Washers.
304 Stainless Steel Fender Washers offer a durable and long lasting assembly due to the corrosion resistant properties of Stainless Steel. Extra Thick Fender Washers are significantly thicker than a standard Fender Washer (For Example a 1/4" x 1-1/4" Standard is 0.050 inches thick, whereas an Extra Thick is Max 0.125 - Min 0.100 inches).
| Washer Size | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| 1/4" | 9/32" (0.28125") | 1-1/4" (1.25"), Max 1.260" - Min 1.120" | Max 0.125" - Min 0.100" |
| 5/16" | 11/32" (0.34375") | 1-1/2" (1.5"), Max 1.501" - Min 1.450" | Max 0.125" - Min 0.100" |
| 3/8" | 13/32" (0.40625") | 1-1/2" (1.5"), Max 1.501" - Min 1.450" | Max 0.125" - Min 0.100" |
| 1/2" | 17/32" (0.53125") | 2" (1.5"), Max 2.001" - Min 1.980" | Max 0.125" - Min 0.100" |
The overriding characteristics of military flat washers compared to commercial products is the extensive inspection and lot tractability, guaranteeing the chemical, physical and dimensional qualities. While commercial fasteners may look similar and happen to pass many tests given MS washers, the commercial fasteners lack the pedigree of guaranteed quality for chemical, physical and dimensional aspects that users who order MS flat washers rely on.
800 Series Military Standard Flat Washers are available in corrosion resistant 18-8 Stainless Steel. MS - Military Standards.
| Washer Size | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| #0-801 | Max 0.078" - Min 0.075" | Max 0.187" - Min 0.185" | Max 0.025" - Min 0.016" |
| #2-802 | Max 0.093" - Min 0.090" | Max 0.250" - Min 0.200" | Max 0.025" - Min 0.016" |
| #4-803 | Max 0.125" - Min 0.115" | Max 0.250" - Min 0.230" | Max 0.028" - Min 0.027" |
| #4-804 | Max 0.125" - Min 0.115" | Max 0.312" - Min 0.302" | Max 0.040" - Min 0.025" |
| #6-805 | Max 0.156" - Min 0.150" | Max 0.312" - Min 0.302" | Max 0.048" - Min 0.027" |
| #6-806 | Max 0.156" - Min 0.150" | Max 0.375" - Min 0.365" | Max 0.065" - Min 0.036" |
| #8-807 | Max 0.187" - Min 0.177" | Max 0.375" - Min 0.365" | Max 0.065" - Min 0.036" |
| #8-841 | Max 0.188" - Min 0.178" | Max 0.438" - Min 0.428" | Max 0.065" - Min 0.036" |
| #10-808 | Max 0.218" - Min 0.208" | Max 0.437" - Min 0.427" | Max 0.065" - Min 0.036" |
| #10-809 | Max 0.250" - Min 0.240" | Max 0.562" - Min 0.556" | Max 0.080" - Min 0.051" |
| #10-842 | Max 0.219" - Min 0.209" | Max 0.500" - Min 0.495" | Max 0.065" - Min 0.036" |
| 1/4"-810 | Max 0.281" - Min 0.271" | Max 0.625" - Min 0.615" | Max 0.080" - Min 0.051" |
| 1/4"-811 | Max 0.312" - Min 0.302" | Max 0.750" - Min 0.730" | Max 0.080" - Min 0.051" |
| 5/16"-812 | Max 0.343" - Min 0.333" | Max 0.687" - Min 0.677" | Max 0.080" - Min 0.051" |
| 5/16"-813 | Max 0.375" - Min 0.365" | Max 0.875" - Min 0.865" | Max 0.104" - Min 0.064" |
| 3/8"-814 | Max 0.406" - Min 0.396" | Max 0.812" - Min 0.802" | Max 0.080" - Min 0.051" |
| 3/8"-815 | Max 0.437" - Min 0.417" | Max 1.000" - Min 0.950" | Max 0.104" - Min 0.064" |
| 7/16"-816 | Max 0.468" - Min 0.448" | Max 0.921" - Min 0.901" | Max 0.080" - Min 0.051" |
| 7/16"-817 | Max 0.500" - Min 0.495" | Max 1.250" - Min 1.150" | Max 0.104" - Min 0.064" |
| 1/2"-818 | Max 0.531" - Min 0.521" | Max 1.062" - Min 1.000" | Max 0.121" - Min 0.074" |
| 1/2"-819 | Max 0.562" - Min 0.552" | Max 1.375" - Min 1.325" | Max 0.132" - Min 0.086" |
| 5/8"-820 | Max 0.656" - Min 0.636" | Max 1.312" - Min 1.302" | Max 0.121" - Min 0.074" |
| 5/8"-821 | Max 0.687" - Min 0.677" | Max 1.750" - Min 1.650" | Max 0.160" - Min 0.108" |
| 3/4"-822 | Max 0.812" - Min 0.799" | Max 1.500" - Min 1.450" | Max 0.160" - Min 0.108" |
| 3/4"-823 | Max 0.812" - Min 0.799" | Max 2.000" - Min 1.900" | Max 0.177" - Min 0.122" |
| 7/8"-824 | Max 0.937" - Min 0.907" | Max 1.750" - Min 1.650" | Max 0.160" - Min 0.108" |
| 7/8"-825 | Max 0.937" - Min 0.907" | Max 2.250" - Min 2.150" | Max 0.192" - Min 0.136" |
| 1"-826 | Max 1.062" - Min 1.000" | Max 2.000" - Min 1.900" | Max 0.160" - Min 0.108" |
| 1"-827 | Max 1.062" - Min 1.000" | Max 2.500" - Min 2.400" | Max 0.192" - Min 0.136" |
Flat washers are positioned beneath the head of a screw or bolt on an assembly. They are used to distribute the force of an assembly over a wider area. A flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size. Flat washers are normally used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened.
AN960C 900 Series Flat washers are available in standard and light (L) thicknesses. AN960C Flat Washers 18-8 Stainless Steel are corrosion resistant and are used in military applications. AN 900 series flat washers meet standards for the Navy and Airforce, which is where the washers receive the "AN" name.
Washer Thicknesses may vary +/- 0.010" depending upon production run
| Washer Size | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| #2 C2 | 0.099" | 1/4", 0.25" | 1/32", 0.0313" |
| #2 C2L | 0.099" | 1/4", 0.25" | 1/64", 0.015625" (Light) |
| #3 C3 | 0.109" | 1/4", 0.25" | 1/32", 0.21875" |
| #3 C3L | 0.109" | 1/4", 0.25" | 1/64", 0.015625" (Light) |
| #4 C4 | 0.125" | 0.312" | 1/32", 0.03125" |
| #4 C4L | 0.125" | 0.312" | 1/64", 0.015625" (Light) |
| #5 C5 | 0.140" | 0.438" | 3/64", 0.046875" |
| #6 C6 | 0.149" | 0.375" | 1/32", 0.03125" |
| #6 C6L | 0.149" | 0.375" | 1/64", 0.015625" (Light) |
| #8 C8 | 0.174" | 0.375" | 1/32", 0.03125" |
| #8 C8L | 0.174" | 0.375" | 1/64", 0.015625" |
| #10 C10 | 0.203" | 0.437" | 1/16", 0.0625" |
| #10 C10L | 0.203" | 0.437" | 1/32", 0.03125" (Light) |
| 1/4" C416 | 0.265" | 0.500" | 1/16", 0.0625" |
| 1/4" C416L | 0.265" | 0.500" | 1/32", 0.03125" (Light) |
| 5/16" C516 | 0.328" | 0.562" | 1/16", 0.0625" |
| 5/16" C516L | 0.328" | 0.562" | 1/32", 0.03125" (Light) |
| 3/8" C616 | 0.390" | 0.625" | 1/16", 0.0625" |
| 3/8" C616L | 0.390" | 0.625" | 1/32", 0.03125" (Light) |
| 7/16" C716 | 0.453" | 0.750" | 1/16", 0.0625" |
| 7/16" C716L | 0.453" | 0.750" | 1/32", 0.03125" (Light) |
| 1/2" C816 | 0.516" | 0.875" | 1/16", 0.0625" |
| 1/2" C816L | 0.516" | 0.875" | 1/32", 0.03125" (Light) |
| 9/16" C916 | 0.578" | 1.062" | 1/16", 0.0625" |
| 9/16" C916L | 0.578" | 1.062" | 1/32", 0.03125" (Light) |
| 5/8" C1016 | 0.641" | 1.187" | 1/16", 0.0625" |
| 5/8" C1016L | 0.641" | 1.187" | 1/32", 0.03125" (Light) |
| 3/4" C1216 | 0.766" | 1.312" | 3/32", 0.09375" |
| 3/4" C1216L | 0.766" | 1.312" | 1/32", 0.03125" (Light) |
| 7/8" C1416 | 0.890" | 1.500" | 3/32", 0.09375" |
| 1" C1616 | 1.016" | 1.750" | 3/32", 0.09375" |
Lock Washer Internal Tooth 410 Stainless Steel
| Washer Size (ID) | Outer Diameter (OD) | Thickness |
| #2 | Max 0.200" - Min 0.175" | Max 0.016" - Min 0.010" |
| #3 | Max 0.232" - Min 0.215" | Max 0.016" - Min 0.010" |
| #4 | Max 0.270" - Min 0.245" | Max 0.018" - Min 0.012" |
| #5 | Max 0.280" - Min 0.255" | Max 0.020" - Min 0.014" |
| #6 | Max 0.295" - Min 0.275" | Max 0.022" - Min 0.016" |
| #8 | Max 0.340" - Min 0.325" | Max 0.024" - Min 0.018" |
| #10 | Max 0.381" - Min 0.365" | Max 0.024" - Min 0.018" |
| #12 | Max 0.410" - Min 0.394" | Max 0.027" - Min 0.020" |
| 1/4" | Max 0.478" - Min 0.460" | Max 0.028" - Min 0.023" |
| 5/16" | Max 0.610" - Min 0.594" | Max 0.034" - Min 0.028" |
| 3/8" | Max 0.692" - Min 0.670" | Max 0.040" - Min 0.032" |
| 7/16" | Max 0.789" - Min 0.740" | Max 0.040" - Min 0.032" |
| 1/2" | Max 0.900" - Min 0.867" | Max 0.045" - Min 0.037" |
| 9/16" | Max 0.985" - Min 0.957" | Max 0.045" - Min 0.037" |
| 5/8" | Max 1.071" - Min 1.045" | Max 0.050" - Min 0.042" |
| 3/4" | Max 1.245" - Min 1.220" | Max 0.055" - Min 0.047" |
Lock Washer Internal Tooth Zinc Plated Steel
| Washer Size (ID) | Outer Diameter (OD) | Thickness |
| 1/4" | Max 0.478" - Min 0.460" | Max 0.028" - Min 0.023" |
Available in 1/2″ through 2″ bolt sizes as outlined in ASTM F436. Complete certifications are standard with F436 structural product, which includes material grade (chemistry) and hardness. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S. All sizes are stocked in plain, mechanical galvanized and hot-dipped galvanized.
| Bolt Size | Outside Diameter | Inside Diameter | Thickness | Approx Lbs per M Pcs | Approx Pcs per Carton |
|---|---|---|---|---|---|
| 1/2 | 1.063 | .531 | .097/.177 | 20.0 | 2,500 |
| 5/8 | 1.313 | .688 | .122/.177 | 35.0 | 1,250 |
| 3/4 | 1.469 | .813 | .122/.177 | 41.2 | 1,125 |
| 7/8 | 1.750 | .938 | .136/.177 | 71.0 | 625 |
| 1 | 2.000 | 1.063 | .136/.177 | 93.8 | 500 |
| 1-1/8 | 2.250 | 1.188 | .136/.177 | 120 | 375 |
| 1-1/4 | 2.500 | 1.375 | .136/.177 | 144 | 300 |
| 1-3/8 | 2.750 | 1.531 | .136/.177 | 174 | 275 |
| 1-1/2 | 3.000 | 1.625 | .136/.177 | 208 | 250 |
| 1-5/8 | 3.250 | 1.770 | .178/.280 | 311 | 150 |
| 1-3/4 | 3.375 | 1.875 | .178/.280 | 328 | 130 |
| 1-7/8 | 3.500 | 2.000 | .178/.280 | 345 | 135 |
| 2 | 3.750 | 2.125 | .178/.280 | 398 | 100 |
| 2-1/4 | 4.000 | 2.407 | .240/.340 | 568 | 60 |
| 2-1/2 | 4.500 | 2.657 | .240/.340 | 734 | 30 |
| 2-3/4 | 5.000 | 2.907 | .240/.340 | 921 | 30 |
| 3 | 5.500 | 3.157 | .240/.340 | 1129 | 30 |
Available in 5/8″ through 1-1/4″ bolt sizes to weathering specification as outlined in ASTM F436. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S.
| Bolt Size | Outside Diameter | Inside Diameter | Thickness | Approx Lbs per M Pcs | Approx Pcs per Carton |
|---|---|---|---|---|---|
| 5/8 | 1.313 | .688 | .122/.177 | 41.0 | 1250 |
| 3/4 | 1.469 | .813 | .122/.177 | 50.0 | 1125 |
| 7/8 | 1.750 | .938 | .136/.177 | 72.0 | 625 |
| 1 | 2.0000 | 1.063 | .136/.177 | 93.8 | 500 |
| 1-1/8 | 2.250 | 1.188 | .136/.177 | 116 | 375 |
| 1-1/4 | 2.500 | 1.375 | .136/.177 | 144 | 300 |
| 1-1/2 | 3.000 | 1.656 | .136/.177 | 206 | 250 |
Available in 1/2″ through 1″ bolt sizes as outlined in ASTM F436. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S. All sizes are stocked in plain, mechanical galvanized and hot-dipped galvanized.
| Bolt Size | Outside Diameter | Slope | Approx Lbs per M Pcs | Approx Pcs per Carton |
|---|---|---|---|---|
| 1/2 | 1.750 | 16-2/3% | 251 | 200 |
| 5/8 | 1.750 | 16-2/3% | 237 | 250 |
| 3/4 | 1.750 | 16-2/3% | 224 | 250 |
| 7/8 | 1.750 | 16-2/3% | 209 | 250 |
| 1 | 1.750 | 16-2/3% | 181 | 250 |
Hardened structural washers are used for special construction applications. 1″ through 1-1/2″ bolt sizes are stocked and sold with full product certifications.
| Bolt Size | Outside Diameter | Inside Diameter | Thickness | Approx Lbs per M Pcs | Approx Pcs per Carton |
|---|---|---|---|---|---|
| 1 | 2.000 | 1.063 | .312 | 196 | 250 |
| 1-1/8 | 2.250 | 1.188 | .312 | 252 | 200 |
| 1-1/4 | 2.500 | 1.375 | .312 | 303 | 175 |
| 1-1/2 | 3.000 | 1.625 | .312 | 442 | 80 |
Lock Washer External Tooth 410 Stainless Steel
| Washer Size (ID) | Outer Diameter (OD) | Thickness |
| #2 | Max 0.189" - Min 0.177" | Max 0.013" - Min 0.010" |
| #3 | Max 0.235" - Min 0.220" | Max 0.016" - Min 0.010" |
| #4 | Max 0.260" - Min 0.245" | Max 0.018" - Min 0.012" |
| #5 | Max 0.285" - Min 0.270" | Max 0.020" - Min 0.014" |
| #6 | Max 0.320" - Min 0.305" | Max 0.022" - Min 0.016" |
| #8 | Max 0.381" - Min 0.365" | Max 0.023" - Min 0.018" |
| #10 | Max 0.410" - Min 0.395" | Max 0.024" - Min 0.018" |
| #12 | Max 0.475" - Min 0.460" | Max 0.027" - Min 0.020" |
| 1/4" | Max 0.510" - Min 0.494" | Max 0.028" - Min 0.023" |
| 5/16" | Max 0.610" - Min 0.588" | Max 0.034" - Min 0.028" |
| 3/8" | Max 0.694" - Min 0.670" | Max 0.040" - Min 0.032" |
| 7/16" | Max 0.760" - Min 0.740" | Max 0.040" - Min 0.032" |
| 1/2" | Max 0.900" - Min 0.880" | Max 0.045" - Min 0.037" |
| 5/8" | Max 1.070" - Min 1.045" | Max 0.050" - Min 0.042" |
| 3/4" | Max 1.260" - Min 1.220" | Max 0.055" - Min 0.047" |
Dock Washers are used in construction applications where a thick, low carbon washer is needed. They are heavy duty washers, similar to fender washers, but much larger and with a hot dipped galvanized finish.
The corrosion resistant finish makes these washers optimal for marine applications.
| Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
| 3/4" | 13/16" | 3" | 1/4" |
| 7/8" | 15/16" | 3-1/2" | 5/16" |
| 1" | 1-1/16" | 4" | 3/8" |
| Washer Size | Outside Diameter | Thickness |
| 1/4" | 0.487 | 0.078 |
| 3/8" | 0.680 | 0.125 |
| 7/16" | 0.776 | 0.140 |
| 1/2" | 0.869 | 0.172 |
| 5/8" | 1.073 | 0.203 |
| 3/4" | 1.265 | 0.218 |
| 7/8" | 1.459 | 0.234 |
| 1" | 1.656 | 0.250 |
| Sku | Material | Size | ID | OD |
|---|---|---|---|---|
| S-1"USS | Steel Zinc USS Washer | 1" | .062 | 2.5 |
| S-1/2USS | Steel Zinc USS Washer | 1/2 | 0.562 | 1.375 |
| S-1/4USS | Steel Zinc USS Washer | 1/4 (#14) | 0.312 | 0.75 |
| S-10USS | Steel Zinc USS Washer | 3/16 (#10) | 0.25 | 0.562 |
| SS-1"USS | Stainless Steel USS Washer | 1" | 1.062 | 2.5 |
| SS-1/2USS | Stainless Steel USS Washer | 1/2 | 0.562 | 1.375 |
| SS-1/4USS | Stainless Steel USS Washer | 1/4 (#14) | 0.312 | 0.75 |
| SS-10USS | Stainless Steel USS Washer | 3/16 (#10) | 0.25 | 0.562 |


300 series stainless is also known as 18-8 stainless steel because it typically consists of 18% chromium and 8% nickel. 300 series stainless steel has excellent corrosion resistance and is generally non-magnetic. It is an excellent material to use for general outdoor purposes. It can withstand standard environmental conditions without corroding. It is a far superior material to use compared to steel products when it is exposed to the elements. The 300 series stainless properties are below.
Cr | Ni | Max C | MaxMn | Max P | Max S | Mo | Max Si | |
|---|---|---|---|---|---|---|---|---|
302 stainless | 17-19% | 8-10% | 0.15% | 2% | 0.045% | 0.03% | 1% | |
303 stainless | 17-19% | 8-10% | 0.15% | 2% | 0.02% | 0.15% min | 0.6% max | 1% |
304 stainless | 18-20% | 8-10.5% | 0.08% | 2% | 0.45% | 0.03% | 1% |
We carry a large selection of flat washers in 300 series stainless steel. Our standard off the shelf items include commercial flat washers, MS flat washers, AN960C, NAS, and fender washers. If you are looking for a 18-8 flat washer that is not off the shelf, we can make 18-8 washers specifically to the dimensions that you need. Our custom runs can be as low as 100 pieces all the way to hundreds of thousands. We can supply washers as small as 0.062 inside diameter all the way to 12”. If you are looking for thin washer (0.002” thick) to a thicker washer, 1/2” thick, we can supply it.
316 and 316L stainless steel are a molybdenum-bearing austenitic stainless steel. 316 series stainless steel contains more nickel compared to 304 stainless steel which gives it a better corrosions resistance compared to 300 series stainless steel. 316 stainless steel can withstand such harsh environments while being exposed to water (fresh and sea), chloride corrosion, and other chemicals such as sulfuric, phosphoric and acetic acids. It also offers good strength and creep resistance while being exposed to subzero temperatures while still maintaining mechanical and corrosion resistances.
Ni - 12.00
Cr - 17.00
Mo - 2.50
Fe - Balance
Si - 1.00
Mn - 2.00
C - 0.080
P - 0.045
S - 0.030
We carry a large selection of flat washers in 316 stainless steel. Our standard off the shelf items include commercial flat washers and fender washers. If you are looking for a 316 flat washer that is not off the shelf, we can make 316 washers specifically to the dimensions that you need. Our custom runs can be as low as 100 pieces all the way to hundreds of thousands. We can supply washers as small as 0.062 inside diameter all the way to 12”. If you are looking for thin washer (0.002” thick) to a thicker washer, 1/2” thick, we can supply it.

Raaj Sagar Steels's extensive capabilities include extended washer sizes up to 12 inches in diameter. This is part of Raaj Sagar’s wide offering, which provides washers and spacers to accommodate the largest range of applications across any industry.
Raaj Sagar’s capabilities include flat washers and custom shapes such as tab and notched washers that are created to meet your exact specifications. Sizes range from 0.080-inch to 12-inch outside diameters and substantial inside diameter choices, providing endless washer possibilities.
Large washers are available in numerous metallic and non-metallic materials, thicknesses and production quantities that include prototype or production runs. Metallic options include low-carbon sheet steel, various spring steels, stainless steel, aluminum, brass, copper and nickel silver. Non-metallic materials include ABS, acetal, polyester, nylon, MD nylon, polycarbonate, fiber, polyethylene and various phenolics. Washer thicknesses can range from 0.005 to .134 inches. Production can be completed with fast turnaround times for prompt shipping.
| Stainless Steel Large Flat Washer SPECIFICATION | |
|---|---|
| Bolt Size | M10 |
| Finish | BZP |
| Manufacturer Guarantee | 1 Year Guarantee |
| Pack Size | 10 |
| Pieces in Pack/Case | 10 |
| Product Thickness | 2.5 mm |
| Product Type | Large Flat Washers |
PRODUCT: 3/8 ID x 7/8" OD 316 Stainless Steel Sealing Washer. 20 Gauge 316 Stainless Steel with 0.076" Bonded EPDM Rubber Seal. 4000/Box. Price/Box. (leadtime 1-3 business days)
APPLICATIONS: Marine, saltwater or anywhere corrosive or where 316 stainless is needed. Sealing and flashing; metal roofing and siding applications etc. Fits tightly to 3/8" fasteners, screws etc.
MATERIALS/CONSTRUCTION:
ASTM grade 20-Gauge (~0.040") 316 Stainless Steel
Black EPDM Rubber 70 durometer hardness, thickness about 0.076", meets ASTM D2000.
Overall thickness about .150" before compression;
Available compression about 0.030".
Made in India.
Where sealing properties are required, the conical design directs the flow of the elastomeric portion toward the problem areas. Where cushioning or vibration presents a problem, our full-face elastomeric material affords 100% protection.
Features Include: Quality elastomeric compounding to meet specifications for elasticity, memory, temperature extremes, chemical, ozone, and sunlight-resistance.
Conical design directs flow of facing materials to form a seal conforming to both fastener and sealing surface.
Full-face design cushions fragile surfaces and minimizes vibration.
Inside diameter sizes for #4 diameter screw to 1-1/2" diameter bolts and corresponding metric range.
Typical Dimensions: Metal Thickness is 20 Gauge / ~ 0.030 mils, and rubber thickness is 0.066" nominal. Washer assembly is coined to created a total thickness of 0.120 to 0.140, depending on washer size (before torque is applied). Inside diameter of rubber washer is designed to seal tightly to screw.
BONDED SEALING WASHER INSTALLATION GUIDE:
SEALING IN. . . OR SEALING OUT
When installed in a sealing application, the materials in Sealing Washers compress against either a flexible or an inflexible surface to permanently seal in or seal out any operating environment, whether natural or industrial. Facing materials are engineered to provide optimal resistance to weathering from ozone, ultraviolet light and/or chemical agents.
CUSHIONING AND VIBRATION CONTROL
As the washer is compressed and fastened against a substrate, the facing material serves as a permanent cushion. This feature protects the substrate from installation damage (spinning fastener and/or torque) and from vibration damage during the product's life cycle.
NAS Flat Washers in this selection feature a smaller Outside Diameter (OD) and Inside Diameter (ID) as per the National Aerospace Standards. NAS Flat washers are used on military applications and ID and OD are tighter in size than a Standard Flat Washer.
NAS Flat washers are used on military applications. 18-8 Stainless steel washers are corrosion resistant in fresh or rain water. NAS flat washers are standardized for use with aircrafts and military applications requiring National Aerospace Standards.
| Washer Size | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| #0 | Max 0.063" - Min 0.060" | Max 0.099" - Min 0.090" | Max 0.016" - Min 0.013" |
| #2 | Max 0.089" - Min 0.085" | Max 0.149" - Min 0.140" | Max 0.016" - Min 0.013" |
| #3 | Max 0.102" - Min 0.093" | Max 0.180" - Min 0.150" | Max 0.032" - Min 0.026" |
| #4 | Max 0.115" - Min 0.105" | Max 0.208" - Min 0.200" | Max 0.032" - Min 0.026" |
| #5 | Max 0.128" - Min 0.118" | Max 0.238" - Min 0.228" | Max 0.032" - Min 0.026" |
| #6 | Max 0.143" - Min 0.133" | Max 0.267" - Min 0.257" | Max 0.032" - Min 0.026" |
| #6L | Max 0.143" - Min 0.133" | Max 0.267" - Min 0.257" | Max 0.016" - Min 0.013" (Light) |
| #8 | Max 0.169" - Min 0.160" | Max 0.304" - Min 0.296" | Max 0.032" - Min 0.026" |
| #8L | Max 0.169" - Min 0.160" | Max 0.304" - Min 0.296" | Max 0.016" - Min 0.013" (Light) |
| #10 | Max 0.195" - Min 0.189" | Max 0.354" - Min 0.325" | Max 0.063" - Min 0.058" |
| #10L | Max 0.195" - Min 0.189" | Max 0.354" - Min 0.325" | Max 0.032" - Min 0.028" (Light) |
| #416 | Max 0.255" - Min 0.245" | Max 0.468" - Min 0.458" | Max 0.063" - Min 0.058" |
| #416L | Max 0.255" - Min 0.245" | Max 0.468" - Min 0.458" | Max 0.032" - Min 0.028" (Light) |
If you don’t see what you’re looking for just call one of our team members at +91-22-6659 5285 Or Mail Us inquiry@raajsagarsteels.com. No inquiry is too large or too small, we specialize in locating hard to find items. If you do see what you are looking, we would love to assist you and give you a quote today!
24 Hrs. Online Whatsapp Number Contact Person: Mr. Milap Mehta - Cell: +91-9869 532 584Popular Searches