Main Products: High-tensile hex bolts, like DIN931, 933, A325, A6914, GB5782, 5783, 5785, 5786, Australian standard and JIS. We can also manufacture non-standard bolts
The Most Competitive Products: High tensile hex bolts, High Tensile U Bolts, High Tensile Hexagon Bolts, High Tensile Unf Bolts, High Tensile Unc Bolts
Raaj Sagar Steels is the biggest manufacturer for larger High Tensile Stainless Steel Fasteners in India since 1982, we have a monthly production of over 300 tons in bigger sizes from M-24 to M-100
We are a specialized in making High tensile bolt, we produce these bolts with ISO 9001:2000 standards with stylish finish that too at very competitive price. Our products are equivalent to other manufacturer of High tensile bolts like H Unbrako High tensile bolts, Tvs High tensile bolts, Lps High tensile bolts, SFPL High tensile bolts and Caparo. Raaj Sagar Steels is an international supplier of Slotted Machine Screws, Spanner (Snake Eye) Machine Screws, Stainless Steel Lag Screws, Torx Machine Screws, Trim Head Hex Cap Screws, Stainless Steel Wood Screw, One Way Machine Screws.The Screws manufactured in Stainless Steel and Duplex steel, we also manufacture Phillips Machine Screws at our other factory in Vapi, Gujarat. Where we also manufacture Square Drive Pan Head Machine Screws, SS Machine Screw and Stainless Steel Metric Machine Screw for industries like Oil & Gas, Petrochemicals, Refineries, Thermal, Nuclear sector, Solar Power Plants, Atomic Energy, Defense and Aerospace etc.
Raaj Sagar Steels manufacture and supply a comprehensive range of High Tensile Stainless Steel Fasteners Like Slotted Machine Screws, Spanner (Snake Eye) Machine Screws. Our Gujarat Division provide total Fasteners Solutions for various projects in India & overseas so far we have supplied Square Drive Pan Head Machine Screws, SS Machine Screw to more than 30 countries like UK, Ireland, Vietnam, Philippines, South Africa, Australia, Kenya, Nigeria, Iran, Russia, Japan, Canada and many more European & African Countries , We have wide range of manufacturing capabilities and due to our proven track record & only 1% rejection rate became Raaj Sagar Steels an ideal choice for major EPC Contractors across the globe for their Steel Fasteners requirements.
| Product name | High Tensile Bolts |
|---|---|
| ALSO CHECK | Din Nut Specifications / Din Bolt Specifications / Din Screws Specifications / Din Washer Specifications / DOWNLOAD PDF & FASTENERS Specifications PDF |
| Place of Origin | India |
| High Tensile Nut Bolts Grades | High Tensile Bolts Grade 8.8 High Tensile Bolts Grade 12.9 High Tensile Bolts Grade 10.9 |
| Standard | IS / BS / BSW / DIN / ASME / ASTM, ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS |
| DIN Standard | B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923 |
| Passivation /plain |
| High Tensile Bolts Size | M2 – M100 |
| High Tensile Bolts Diameter | M3-M60 |
| High Tensile Bolts Length | 6mm-500mm |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc |
| High Tensile Bolts Drive type | Phil, Slotted, Hex socket, Torx & square slot etc |
| High Tensile Bolts Material |
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| High Tensile Bolt Applications : | Wind tower, Nuclear power, Railway, Automotive industry, Railway, Construction, Electronic industry, High Tensile Bolt Uses in Oil & Gas, Railways, Petrochemicals, Refineries, Thermal, Nuclear sector, Solar Power Plants, Atomic Energy, Defense and Aerospace |
| High Tensile Bolts Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Thread Requirements | ASME B1.1, UNC & UNF, Class 2 A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
| High Tensile Bolts Finish | Per ASTM A380/A380M |
| High Tensile Bolts Finishing | Zinc Plated (Yellow, White, Blue, Black), Passivated, Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, Sandblast and Anodize, Chromate, Electro Painting, Black Anodize, Chrome plated, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test |
| Stock Products | Stainless steel: All DIN, GB Standard and part ASNI standard High Tensile Bolts, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912 |
| Production technology | Cold Forged |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| MOQ | 10 pieces |
| Delivery time | Regular product is about 7-15 days, custom product will according to special requirement |
| Others | OEM, ODM, ±0.03MM tolerance |
| Surface treatment of High Tensile Bolts |
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| High Tensile Bolts Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| High Tensile Washers | Size: Normal Dia : ¼” to 4″ 6-100 mm Length : As Specified by user or Upto any Length. |
| Tolerance of High Tensile Bolts | +/-0.01mm to +/-0.05mm |
| High Tensile Bolts Samples | Yes |
| Production Capacity | 2,700,000 pieces per month |
| Payment Terms | T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping |
| Specialized in | High Tensile Bolts CSK philip screw, CSK socket screw, Pan head Ph screw, Pan head socket screw, Socket cap head screw, set screw, Pan head torx screw, CSK head trox screw, Wood screw |
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High Tensile Bolt Grades | High Tensile Bolts Manufacturers | High Tensile Bolts Properties | High Tensile Bolt Standard | High Tensile Bolt Material Grade | High Tensile Bolt Diameter | High Tensile Bolt Length
High Tensile - Imperial Grades
![]() | Grade 5 Tensile Strength = 120,000 lbs/in² Designated by 3 radial lines on the head (refer AS 2465) |
![]() | Grade 8 Tensile Strength = 150,000 lbs/in² Designated by 6 radial lines on the head (refer AS 2465) |
![]() | Grade 9 Tensile Strength = 180,000 lbs/in² Designated by 9 radial lines on the head (refer AS 2465) |
![]() | Property Class 8.8 Tensile Strength = 800 MpaOn metric high tensile bolts the relevant property class is indicated on the head (refer AS1110). |
![]() | Class 10.9 Tensile Strength = 1,000 Mpa On metric high tensile bolts the relevant property class is indicated on the head (refer AS1110) |
![]() | Structual Assemblies Class 8.8 Tensile Strength = 800 Mpa On structual bolts bolts the relevant property class is indicated on the head (refer AS1252) |
High Tensile -Stainless Steel Grades
![]() | 304 (A2) Stainless Steel Tensile Strength = 700 MpaGeneral purpose stainless steel with good resistance to corrosion. |
![]() | 316 (A4) Stainless Steel Tensile Strength = 700 MpaMarine grade stainless steel with high resistance to corrosion. |
![]() | 316 (A4) Stainless Steel Tensile Strength = 800 MpaHigh Tensile stainless steel with high resistance to corrosion. |
HEX BOLTS, STUD BOLTS, ANCHOR BOLTS, EYE BOLTS, FLANGE BOLTS,SOCKET HED CAP SCREW, CSK, GRUB SCREW, HEXAGONAL HEAD BOLTS, ALLEN BOLTS, HUB BOLTS, T BOLTS, BENZO BOLTS, TRACK SHOE BOLTS.
Grades of High Tensile Bolts:
Types of High Tensile Bolts:
Dimensions
High Tensile Friction Grip Bolts (Structural Bolts)
Track Shoe Bolts with Square Nuts
| Bolt Size mm | Pitch mm | Bolt Hex mm | Strength Grade (N·m) | ||||
|---|---|---|---|---|---|---|---|
| 4.6 | 6.8 | 8.8 | 10.9 | 12.9 | |||
| 3 | 0.5 | 5.5 | 0.51 | 1.01 | 1.35 | 1.90 | 2.27 |
| 4 | 0.7 | 7 | 0.95 | 1.91 | 2.54 | 3.57 | 4.29 |
| 5 | 0.8 | 8 | 2.28 | 4.56 | 6.09 | 8.56 | 10.3 |
| 6 | 1.0 | 10 | 3.92 | 7.85 | 10.5 | 14.7 | 17.7 |
| 8 | 1.25 | 13 | 9.48 | 18.9 | 25.3 | 35.5 | 42.7 |
| 10 | 1.5 | 17 | 19.1 | 38.1 | 50.9 | 71.5 | 86.8 |
| 12 | 1.75 | 19 | 32.6 | 65.1 | 86.9 | 122 | 146 |
| 14 | 2.0 | 22 | 51.9 | 104 | 139 | 195 | 234 |
| 16 | 2.0 | 24 | 79.9 | 160 | 213 | 299 | 359 |
| 18 | 2.5 | 27 | 110 | 220 | 293 | 413 | 495 |
| 20 | 2.5 | 30 | 156 | 312 | 416 | 585 | 702 |
| 22 | 2.5 | 32 | 211 | 422 | 563 | 792 | 950 |
| 24 | 3.0 | 36 | 270 | 539 | 719 | 1010 | 1213 |
| 27 | 3.0 | 41 | 398 | 795 | 1060 | 1490 | 1789 |
| 30 | 3.5 | 46 | 540 | 1080 | 1440 | 2025 | 2430 |
Maximum tightening torque for coarce threaded metric steel bolts:
| Size (mm) | Typical Maximum Tightening Torque (Nm) | |||
|---|---|---|---|---|
| Property Class | ||||
| Grade 8.8 | Grade 9.8 | Grade 10.9 | Grade 12.9 | |
| M5 High Tensile Bolt Torque | 7.0 | 7.8 | 10.0 | 11.7 |
| M6 High Tensile Bolt Torque | 11.8 | 13.3 | 17.0 | 19.9 |
| M8 High Tensile Bolt Torque | 28.8 | 32.3 | 41.3 | 48.3 |
| M10 High Tensile Bolt Torque | 57.3 | 64.1 | 81.8 | 95.7 |
| M12 High Tensile Bolt Torque | 99.8 | 112 | 143 | 167 |
| M16 High Tensile Bolt Torque | 248 | 277 | 354 | 413 |
| M20 High Tensile Bolt Torque | 500 | 690 | 809 | |
| M24 High Tensile Bolt Torque | 865 | 1195 | 1395 | |
| M30 High Tensile Bolt Torque | 1719 | 2377 | 2774 | |
HIGH TENSILE HEX BOLTS IN MM THREADS TO IS 1364 (PART 1) 2002 & 1SO 4014-1999 All dimensions in mm
| DIA | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 |
| Pitch | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | ||||||||
| Grade A upto length | 40 | 50 | 60 | 80 | 100 | 120 | 140 | 150 | Grade A not applicable to these dia’s | ||||||||||||
| Head Across Flat (S) Nom = Max Min Grade A Grade B | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
| 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 26.67 | 29.67 | 33.38 | 35.38 | Grade A not applicable to these dia’s | |||||||||
| 6.64 | 7.64 | 9.64 | 12.57 | 15.57 | 17.57 | 20.16 | 23.16 | 26.16 | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | 78.1 | |
| Head Height (K) Nom Tol + or – Grade A Grade B | 2.8 | 3.5 | 4 | 5.3 | 6.4 | 7.5 | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | 26 | 28 | 30 | 33 |
| 0.125 | 0.15 | 0.18 | 0.215 | Grade A not applicable to these dia’s | |||||||||||||||||
| 0.2 | 0.24 | 0.29 | 0.35 | 0.42 | 0.5 | ||||||||||||||||
| Across corners e Min Grade A Grade B | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 | 23.36 | 26.75 | 30.14 | 33.53 | 37.72 | 39.98 | Grade A not applicable to these dia’s | ||||||||
| 7.5 | 8.63 | 10.89 | 14.2 | 17.59 | 19.85 | 22.78 | 26.17 | 29.56 | 32.95 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 | 88.25 | |
| Thread Length (b) For lengths < or = 125mm For lengths > 125mm <= 200mm For lengths > 200mm | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 | 60 | 66 | Not specified as full thread recommended | ||||||
| 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | 66 | 72 | 78 | 84 | 90 | 96 | 102 | 108 | 116 | |
| 33 | 35 | 37 | 41 | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | 79 | 85 | 91 | 97 | 103 | 109 | 115 | 121 | 129 | |
| Major Dia at thread (min) | 3.838 | 4.826 | 5.794 | 7.76 | 9.732 | 11.701 | 13.682 | 15.682 | 17.623 | 19.623 | 21.623 | 23.577 | 26.577 | 29.522 | 32.522 | 35.465 | 38.465 | 41.437 | 44.437 | 47.399 | 51.399 |
| Major Dia at thread (max) | 3.978 | 4.976 | 5.974 | 7.972 | 9.968 | 11.966 | 13.962 | 15.962 | 17.958 | 19.958 | 21.958 | 23.952 | 26.952 | 29.947 | 32.947 | 35.94 | 38.94 | 41.937 | 44.937 | 47.929 | 51.929 |
| DIA | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1 | 1 1/8 | 1 1/4 | 1 3/8 | 1 1/2 | 1 3/4 | 2 |
| BSW Pitch (TPI) | 20 | 18 | 16 | 14 | 12 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 5 | 4.5 | |
| BSF PITCH (TPI) | 26 | 22 | 20 | 18 | 16 | 16 | 14 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 |
| Head Across Flat (S) Min Max | 0.438 | 0.518 | 0.592 | 0.702 | 0.812 | 0.912 | 1.000 | 1.190 | 1.288 | 1.468 | 1.640 | 1.815 | 2.005 | 2.175 | 2.520 | 2.700 |
| 0.445 | 0.525 | 0.600 | 0.710 | 0.820 | 0.920 | 1.010 | 1.200 | 1.300 | 1.480 | 1.670 | 1.860 | 2.050 | 2.220 | 2.580 | 2.760 | |
| Head height (K) Min Max | 0.166 | 0.208 | 0.250 | 0.292 | 0.333 | 0.365 | 0.407 | 0.480 | 0.563 | 0.636 | 0.710 | 0.790 | 0.880 | 0.960 | 1.110 | 1.270 |
| 0.176 | 0.218 | 0.260 | 0.302 | 0.343 | 0.375 | 0.417 | 0.500 | 0.583 | 0.666 | 0.750 | 0.830 | 0.920 | 1.000 | 1.170 | 1.330 | |
| Across corners e Max | 0.51 | 0.61 | 0.69 | 0.82 | 0.95 | 1.06 | 1.17 | 1.39 | 1.50 | 1.71 | 1.93 | 2.15 | 2.37 | 2.56 | 2.98 | 3.19 |
| Thread Length b Min | Twice the Dia (2D) | |||||||||||||||
| Major Dia at thread BSW (min) | 0.2427 | 0.3046 | 0.3666 | 0.4285 | 0.4904 | 0.5527 | 0.6147 | 0.7390 | 0.8653 | 0.9897 | 1.1140 | 1.2388 | 1.4879 | 1.7369 | 1.9862 | |
| Major Dia at thread BSW (max) | 0.2488 | 0.3112 | 0.3736 | 0.4360 | 0.4985 | 0.5609 | 0.6233 | 0.7482 | 0.8750 | 1.000 | 1.1250 | 1.250 | 1.500 | 1.750 | 2.000 | |
| Major Dia at thread BSF (min) | 0.2432 | 0.3051 | 0.3671 | 0.4290 | 0.4910 | 0.5533 | 0.6153 | 0.7394 | 0.8658 | 0.9902 | 1.1148 | 1.2395 | 1.3640 | 1.4888 | 1.7380 | 1.9876 |
| Major Dia at thread BSF (max) | 0.2489 | 0.3113 | 0.3737 | 0.4361 | 0.4985 | 0.5610 | 0.6234 | 0.7482 | 0.8750 | 1.000 | 1.1250 | 1.250 | 1.375 | 1.500 | 1.750 | 2.000 |
| DIA | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1 | 1 1/8 | 1 1/4 | 1 3/8 | 1 1/2 | 1 3/4 | 2 |
| UNC Pitch (TPI) | 20 | 18 | 16 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 5 | 4.5 |
| UNF Pitch (TPI) | 28 | 24 | 24 | 24 | 20 | 20 | 18 | 16 | 14 | 12 | NOT RECOMMENDED | |||||
| Head Across Flat (S) Min Max | 0.430 | 0.493 | 0.554 | 0.617 | 0.742 | 0.804 | 0.929 | 1.115 | 1.300 | 1.488 | 1.657 | 1.830 | 2.017 | 2.205 | 2.565 | 2.940 |
| 0.437 | 0.500 | 0.562 | 0.625 | 0.750 | 0.812 | 0.937 | 1.125 | 1.312 | 1.500 | 1.687 | 1.875 | 2.062 | 2.250 | 2.625 | 3.000 | |
| Head Height (K) Min Max | 0.153 | 0.201 | 0.233 | 0.281 | 0.313 | 0.361 | 0.393 | 0.463 | 0.543 | 0.597 | 0.678 | 0.773 | 0.838 | 0.934 | 1.074 | 1.203 |
| 0.163 | 0.211 | 0.243 | 0.291 | 0.323 | 0.371 | 0.403 | 0.483 | 0.563 | 0.627 | 0.718 | 0.813 | 0.878 | 0.974 | 1.134 | 1.263 | |
| Across corners e (MAX) | 0.505 | 0.577 | 0.650 | 0.722 | 0.866 | 0.938 | 1.083 | 1.300 | 1.515 | 1.732 | 1.948 | 2.165 | 2.382 | 2.598 | 3.031 | 3.464 |
| Thread Length b (Min) | 2D + 1/4” upto bolt length of 6” and 2D + 1/2” for bolt lengths above 6” | |||||||||||||||
| Major Dia at thread ( Class 2A) Min for UNC | 0.2408 | 0.3026 | 0.3643 | 0.4258 | 0.4876 | 0.5495 | 0.6113 | 0.7353 | 0.8592 | 0.9830 | 1.1064 | 1.2314 | 1.3544 | 1.4794 | 1.7268 | 1.9751 |
| Major Dia at thread (2A) Min for UNF | 0.2425 | 0.3042 | 0.3667 | 0.4281 | 0.4906 | 0.5524 | 0.6149 | 0.7391 | 0.8631 | 0.9868 | NOT RECOMMENDED | |||||
| Major Dia at thread Class 2A Max for UNC | 0.2490 | 0.3113 | 0.3737 | 0.4361 | 0.4985 | 0.5609 | 0.6234 | 0.7482 | 0.8731 | 0.9980 | 1.1228 | 1.2478 | 1.3726 | 1.4976 | 1.7473 | 1.9971 |
| Fastener Type | Diameter | Grades | Grades | Grades | Grades |
| Hexagon bolts distributors | M-12 to M-100 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex bolts distributors | M-12 to M-100 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex cap screws distributors | M-12 to M-100 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Socket head cap screws distributors | M-30 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex nuts distributors | M-30 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex lock nuts distributors | M-30 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex nylock nuts distributors | M-30 to M-64 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Hex castle nuts distributors | M-12 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Heavy hex nuts distributors | M-12 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Washers distributors | M-12 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Stud bolts distributors | M-12 to M-72 | SS 304 / 304 L | Stainless Steel 316 / 316 L | SS 310 / 310 S | 410 / 431 |
| Standard Dimension | Description | Size | Dimensions | Finish | Material Grade |
| DIN 912 | Socket head cap screws | M-30 to M-100 | MM and Inches | Bright | SS 304, SS 316, SS 316L, 316S31 |
| DIN 6912 | Socket head cap screws | M-30 to M-100 | MM and Inches | Bright | SS 304, SS 316, SS 316L, 316S31 |
| ANSI B18.3 | Socket head cap screws | M-30 to M-100 | MM and Inches | Bright | SS 304, SS 316, SS 316L, 316S31 |
| ISO 4762 | Socket head cap screws | M-30 to M-100 | MM and Inches | Bright | SS 304, SS 316, SS 316L, 316S31 |
| Standard Dimension | Description | Size | Dimensions | Finish | Material Grade |
| DIN 912 | Threaded bars | M-6 to M-64 | MM | Plain, Zinc, HDG | SS 304, SS 316, SS 316L, 316S31 |
| DIN 6912 | Threaded bars | 1/4" to 2.1/2" | Unc | Plain, Zinc, HDG | SS 304, SS 316, SS 316L, 316S31 |
| ANSI B18.3 | Threaded bars | 1/4" to 2.1/2" | Unc and ANSI | Fe/Zn 3A as per ASTM F1941 | SS 304, SS 316, SS 316L, 316S31 |
| Standard Dimension | Description | Size | Dimensions | Finish | Material Grade |
| As per drawing | U Bolts | M-16 to M-100 | MM and Inches | Bright | SS 304, SS 316, SS 316L, 316S31 |
High Tensile Stainless Steel Fastener | Standards | Grades Available | Size Range (Metric threads) | Size Range (BSW threads) | ||
From | To | From | To | |||
High Tensile Hexagonal Bolts (Fully threaded screws) | IS 1363/DIN 933/BS 1083 | 202, 304 & 316, 904L | M3 x 10 (in 304) M6 x 10 (in 202 & 316, 904L) | M24 x 300 | 3/16” x 1/2” | 3/4” x 8” |
High Tensile Hexagonal Full and Lock Nuts | IS 1363/ DIN 934/439/ BS 1083 | 202, 304 & 316, 904L | M2 | M36 | 1/8” | 1” |
High Tensile Plain Washers | IS 2016 | 202, 304 & 316, 904L | M3 | M36 | 1/8” | 1” |
High Tensile Spring Washers (Square and Flat sections) | IS 3063 | 202, 304 & 316, 904L | M3 | M36 | 1/8” | 1” |
Slotted Machine Screws (with CSk, Cheese, Round and Raised CSK heads) | IS 1365/1366/8911 DIN 963/84 BS 450 | 202 & 304 | M2 x 4 | M12 x 100 | 1/8” x 1/4” | 1/2” x 4” |
Cross Recessed Machine Screws with Pan and CSK Phillips heads (PPH & CPH) | DIN 7965/965 | 304 | M2 x 4 | M6 x 50 | - | - |
Allen Cap Screws | IS 2269/DIN 912 BS 2470 | 202, 304 & 316, 904L | M3 x 6 | M20 X 100 | 3/16” x 1/2” | 5/8” X 4” |
Allen CSK Screws | IS 6761/ DIN 7991 BS 2470 | 202 & 304, 904L | M3 x 8 | M12 x 100 | 3/16” X 1/2” | 1/2” X 4” |
Grub Screws | IS 6094/ DIN 916/ BS 2470 | 304 | M3 x 3 | M12 x 50 | 3/16” x 3/16” | 1/2” X 2” |
Button Head Screws | ISO 7380 | 304 | M3 x 8 | M10 X 60 | - | - |
Slotted Self Tapping Screws (with PAN & CSK heads) | IS 7173/7170 DIN 7971/7972 | 202 & 304 | No. 4 x 6.5 | No. 14 x 50 | - | - |
Cross Recessed Self Tapping screws (with Pan & CSK Phillips heads) | DIN 7981/7982 | 202 & 304 | No. 4 x 6.5 | No. 14 x 50 | - | - |
Wood Screws | IS 6760/DIN 97 | 202 & 304 | No. 6 x 20 | No. 12 x 100 | - | - |
Self Locking Nuts (Nylock Nuts) | IS 7002/DIN 982 | 304 & 316, 904L | M3 | M20 | 3/16” | 1” |
Square Nuts | IS 2585/DIN 557 | 304 | M5 | M12 | - | - |
Wing Nuts | IS 2636/ DIN 315 | 202 & 304 | M3 | M12 | - | - |
Dom Nuts | DIN 1587 | 304 & 316, 904L | M3 | M24 | 3/16” | 1” |
Flange Nut and Weld Nuts | DIN 6923/6927/929 | 304 | M6 | M12 | - | - |
Special Hex Nuts | UNI 5587 | 304 | M6 X 6 | M12 X 12 | - | - |
Heavy Hex Nuts | ANSI B18.2.2 | 304 & 316, 904L | 3/8” | 1” | ||
Star Washers (Multigrip overlapping) | - | 304, 904L | M6 | M10 | - | - |
Star Washers (ET & IT) | - | 304 | M3 | M16 | - | - |
Taper Washers | - | 304 | M6 | M16 | - | - |
Threaded Rod | - | 304 & 316, 904L | M5 | M36 | 3/16” | 1” |
Rivets (Round, Flat and CSK heads) | IS 2609 | 202, 304 & 316, 904L | 3mm x 10mm | - | - | |
POP (BLIND) RIVETS and Nuts | 304, 904L | |||||
Anchor fasteners (Pin Type) | - | 202 & 304 | M6 x 50 | M24 x 200 | - | - |
Chemical Composition for Stainless steel bolts & nuts
| Grade | AISI | Chemical Composition (% maxima unless stated) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | |||||||
| A1 | SS 202 | 0.12 | 1.0 | 6.5 | 0.20 | 0.15-0.35 | 16,0 - 19,0 | 0.7 | 5,0 - 10,0 | 1.75-2.25 | |||||
| A2 | SS 304 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 15,0 - 20,0 | 0.0 | 8,0 - 19,0 | 4.0 | |||||
| A3 | SS 321 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 17,0 - 19,0 | 0.0 | 9,0 - 12,0 | 1.0 | |||||
| A4 | SS 316 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 16,0 - 18,5 | 2,0 - 3,0 | 10,0 - 15,0 | 4.0 | |||||
| A4 | 316S31 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 16,0 - 18,5 | 2,0 - 3,0 | 10,0 - 15,0 | 4.0 | |||||
| C1 | SS 410 | 0.09-0.15 | 1.0 | 1.0 | 0.05 | 0.03 | 11,5 - 14,0 | - | 1 | - | |||||
| C3 | SS 431 | 0.17-0.25 | 1.0 | 1.0 | 0.04 | 0.03 | 16,0 - 18,0 | - | 1,5 - 2,5 | - | |||||
| C4 | SS 416 | 0.08-0.15 | 1.0 | 1.5 | 0.06 | 0.15-0.35 | 12,0 - 14,0 | 0.6 | 1 | - | |||||
| F1 | SS 430 | 0.12 | 1.0 | 1.0 | 0.04 | 0.03 | 15,0 - 18,0 | 0.0 | 1 | - | |||||
Chemical Composition for Stainless steel bolts & nuts
| Grade | AISI | Chemical Composition (% maxima unless stated) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | |||||||
| A1 | SS 202 | 0.12 | 1.0 | 6.5 | 0.20 | 0.15-0.35 | 16,0 - 19,0 | 0.7 | 5,0 - 10,0 | 1.75-2.25 | |||||
| A2 | SS 304 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 15,0 - 20,0 | 0.0 | 8,0 - 19,0 | 4.0 | |||||
| A3 | SS 321 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 17,0 - 19,0 | 0.0 | 9,0 - 12,0 | 1.0 | |||||
| A4 | SS 316 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 16,0 - 18,5 | 2,0 - 3,0 | 10,0 - 15,0 | 4.0 | |||||
| C1 | SS 410 | 0.09-0.15 | 1.0 | 1.0 | 0.05 | 0.03 | 11,5 - 14,0 | - | 1 | - | |||||
| C3 | SS 431 | 0.17-0.25 | 1.0 | 1.0 | 0.04 | 0.03 | 16,0 - 18,0 | - | 1,5 - 2,5 | - | |||||
| C4 | SS 416 | 0.08-0.15 | 1.0 | 1.5 | 0.06 | 0.15-0.35 | 12,0 - 14,0 | 0.6 | 1 | - | |||||
| F1 | SS 430 | 0.12 | 1.0 | 1.0 | 0.04 | 0.03 | 15,0 - 18,0 | 0.0 | 1 | - | |||||
Types of Nut Bolts
Most often, customers looking for a high tensile bolt may just be looking for the 8.8 grade. · S- An S grade refers to the tensile strength of industrial fasteners, or the maximum amount of stress these fasteners and fixing can withstand before they begin to break or fail.
Tensile Bolt Grading
When purchasing high tensile bolts, there are two main grades you should be aware of: ‘S’ and ‘8.8’ Many times, two fasteners and fixings look and feel the same, and there’s a reason why.
· 8.8- This type of grade is often referred to as the structural grade for bolts. These types of bolts often have galvanised hexagon heads, and most are made with zinc or are zinc plated. To identify this grade, look out for an ‘8.8’ stamp or a set of three radial lines on the head of the bolt. Most often, customers looking for a high tensile bolt may just be looking for the 8.8 grade.
· S- An S grade refers to the tensile strength of industrial fasteners, or the maximum amount of stress these fasteners and fixing can withstand before they begin to break or fail. When a bolt has a grading of S, it means that it can withstand a stress of 45 to 49.9 metric tonnes per 6.45 cm². This grading, which is typically stamped on the head of the bolt, has the same tensile strength as a grade 8.8 bolt.
Bolts labelled with the grade 8.8 or S are solid, heavy duty bolts that can be used for a variety of tasks. However, it is important to understand that other grades are also available, although perhaps not used as often.
· 4.6- These types of bolts are considered to be commercial grade and are not as strong as an 8.8. In vehicles, they are often used to hold light objects like trim. Most customers will not need this type of bolt except in circumstances where strength is not an issue.
· 12.9- These fasteners and fixings are meant for the heaviest jobs, like securing engines and ensuring drives are tamper proof.
· R- This grading can withstand 40.8 to 45 metric tonnes per 6.45 cm², and while it used to be popular, it is now quickly being replaced with the more common and efficient S grade.
Markings on Hex Bolt Heads
What do those slashes and numbers generally mean on a hex bolt? It’s very simple, generally speaking on a clear zinc plated bolt you will notice 3 hash markings on the head. This represents grade 5 which carries a tensile strength of 120,000 psi. A gold color zinc plated bolt has 6 hash markings on the head this represents grade 8 which carry a tensile strength of 150,000 psi. Is there a stronger bolt than grade eight? Yes, there is a F-911 hex bolts and 12 point flange bolts that are rated between 180,000 & 190,000 psi tensile strength.
Now to really screw things up for all of us that have Harley Davidson’s, the v-rod has many metric fasteners. If you have ever looked a metric hex bolt you might notice the markings 8.8, 10.9 or 12.9 this does not mean grade 8,10 or 12. The grade 8.8 refers to the tensile strength which is generally 116,000 psi, grade 10.9 is generally 150,000 and grade 12.9 is generally 175,000 psi.
Now what about stainless steel bolts? Well 18-8 stainless is great for corrosion resistance and polishes up to a brilliant finish but is not extremely strong. Generally speaking most of the stainless fasteners are 18-8 and carry a 100,000 tensile strength. Do they make a stronger tensile strength stainless? Yes and the answer is ARP or Automotive Racing Products has stainless fasteners rated at 170,000 psi tensile strength ..
A bolt that is adjusted to a carefully controlled tension by means of a calibrated torsion wrench; used in place of a rivet. Also known as high-tension bolt.
| Head Marking | Grade and Material | Nominal Size Range (inches) |
|---|---|---|
| 3 Radial Lines | Grade 5 Medium carbon steel, quenched and tempered | 1/4" thru 1" |
| Over 1" thru 1-1/2" | ||
| 6 Radial Lines | Grade 8 Medium carbon alloy steel, quenched and tempered | 1/4" thru 1-1/2" |
For metric bolts strength is described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9.
| Class | Size Range (mm) | Minimum Proof Strength (106 Pa) | Minimum Tensile Strength (106 Pa) | Material |
|---|---|---|---|---|
| 4.6 | M5 - M36 | 225 | 400 | Low or medium carbon steel |
| 4.8 | M1.6 - M16 | 310 | 420 | Low or medium carbon steel |
| 5.8 | M5 - M24 | 380 | 520 | Low or medium carbon steel |
| 8.8 | M1.6 - M36 | 600 | 830 | Medium carbon steel, Q & T |
| 9.8 | M1.6 - M16 | 650 | 900 | Medium carbon steel, Q & T |
| 10.9 | M5 - M36 | 830 | 1040 | Low carbon martensite steel, Q & T |
| 12.9 | M1.6 - M36 | 970 | 1220 | Alloy steel, Q & T |
Our metric grade 10.9 bolts meet ASTM A324 grade BD and SAE J429, grade 8 standards. The yield strength of the bolts is 940 and the tensile strength is 1040 MPa. U-Bolt-It is a leading distributor and manufacturer of high quality metric grade 10.9 bolts.
Tensile strength is a measurement of the force required to pull something such as rope, wire, or a structural beam to the point here it breaks. The tensile strength of a material is the maximum amount of tensile stress that it can take before failure, for example breaking.
The size of a metric fastener (screw, bolt, etc.) is specified as diameter, pitch and length, all in millimeters (millimeters is abbreviated "mm"). An exception involves coarse threaded fasteners, in which case only the diameter and length may be listed (coarse threads is then assumed). Consider this size… M8-1.0 x 20.
Most often, customers looking for a high tensile bolt may just be looking for the 8.8 grade. · S- An S grade refers to the tensile strength of industrial fasteners, or the maximum amount of stress these fasteners and fixing can withstand before they begin to break or fail.
A bolt that is adjusted to a carefully controlled tension by means of a calibrated torsion wrench; used in place of a rivet. Also known as high-tension bolt.
These are grade 4.6 and 8.8. The first digit relates to the ultimate strength of the material, whilst the second is the ratio of yield stress to ultimate strength. Thus grade 4.6 bolts have an ultimate material strength of 400N/mm2 and the uield (or proof) stress is 60% of the ultimate strength.
If you have ever looked a metric hex bolt you might notice the markings 8.8, 10.9 or 12.9 this does not mean grade 8,10 or 12. The grade 8.8 refers to the tensile strength which is generally 116,000 psi, grade 10.9 is generally 150,000 and grade 12.9 is generally 175,000 psi.
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!
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