| Standard | ASTM A479 / ASME SA479 |
| Bolt / Screw Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Machine Screws Size | M1.6 – M12 |
| Self Tapping Screw Size | No.2 – No. 14 |
| Length | 3 mm to 200 mm |
| Threads | UNF, BSW, BSF, METRIC, UNC, or as required |
| Fasteners |
|
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Production Process | M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC |
If you are looking for best prices for Duplex Steel Fasteners, DS Stud Bolt, Grade Duplex Steel Fasteners email us on info@duplexsteelalloys.com or call us on +91 9664408767
| Product | Price |
| Duplex Nut Bolt Price Per Kg | US $1.99-200 / Kg |
| ASTM A479 Hexagon Head Screw Duplex Steel | US $1290-4900 / Ton |
| Cost Per Kg of Duplex Steel Heavy Hex Nuts | US $99-1100 / Kg |
| Duplex Stainless Steel Washer Price | S $1.00-900.0 / Kg |
| Duplex Steel Self Locking Nuts Price Per Kg | US $190-1990 / Ton |
| Duplex Heavy Hex Bolt price | US $1000-4500 / Ton |
| Duplex Anchor Fasteners Price List | US $1500-2600 / Ton |
| Duplex Steel Bolt Price List | US $2200-4000 / Ton |
| Duplex Stainless Steel Socket Head Screw Price | US $1.2-3.7 / Kilogram |
| DS Allen Cap Screw Price | US $1,100.00-2,100.00 / Ton |
| Size | Nominal (Major) Diameter [in] |
Coarse Thread (UNC) | Fine Thread (UNF) | ||||
| Threads Per Inch |
Tensile Stress Area [in2] |
Minor Area [in2] |
Threads Per Inch |
Tensile Stress Area [in2] |
Minor Area [in2] |
||
| #0 | 0.0600 | --- | --- | --- | 80 | 0.00180 | 0.00151 |
| #2 | 0.0860 | 56 | 0.00370 | 0.00310 | 64 | 0.00394 | 0.00339 |
| #4 | 0.1120 | 40 | 0.00604 | 0.00496 | 48 | 0.00661 | 0.00566 |
| #5 | 0.1250 | 40 | 0.00796 | 0.00672 | 44 | 0.00830 | 0.00716 |
| #6 | 0.1380 | 32 | 0.00909 | 0.00745 | 40 | 0.01015 | 0.00874 |
| #8 | 0.1640 | 32 | 0.0140 | 0.01196 | 36 | 0.01474 | 0.01285 |
| #10 | 0.1900 | 24 | 0.0175 | 0.01450 | 32 | 0.0200 | 0.0175 |
| 1/4" | 0.2500 | 20 | 0.0318 | 0.0269 | 28 | 0.0364 | 0.0326 |
| 5/16" | 0.3125 | 18 | 0.0524 | 0.0454 | 24 | 0.0580 | 0.0524 |
| 3/8" | 0.3750 | 16 | 0.0775 | 0.0678 | 24 | 0.0878 | 0.0809 |
| 7/16" | 0.4375 | 14 | 0.1063 | 0.0933 | 20 | 0.1187 | 0.1090 |
| 1/2" | 0.5000 | 13 | 0.1419 | 0.1257 | 20 | 0.1599 | 0.1486 |
| 9/16" | 0.5625 | 12 | 0.182 | 0.162 | 18 | 0.203 | 0.189 |
| 5/8" | 0.6250 | 11 | 0.226 | 0.202 | 18 | 0.256 | 0.240 |
| 3/4" | 0.7500 | 10 | 0.334 | 0.302 | 16 | 0.373 | 0.351 |
| 7/8" | 0.8750 | 9 | 0.462 | 0.419 | 14 | 0.509 | 0.480 |
| 1" | 1.0000 | 8 | 0.606 | 0.551 | 12 | 0.663 | 0.625 |
| 1-1/8" | 1.1250 | 7 | 0.763 | 0.693 | 12 | 0.856 | 0.812 |
| 1-1/4" | 1.2500 | 7 | 0.969 | 0.890 | 12 | 1.073 | 1.024 |
| 1-3/8" | 1.3750 | 6 | 1.155 | 1.054 | 12 | 1.315 | 1.260 |
| 1-1/2" | 1.5000 | 6 | 1.405 | 1.294 | 12 | 1.581 | 1.521 |
| 1-3/4" | 1.7500 | 5 | 1.90 | 1.74 | --- | --- | --- |
| 2" | 2.0000 | 4.5 | 2.50 | 2.30 | --- | --- | --- |
The following table of clearance holes was adapted from ASME B18.2.8. The minimum hole diameters are given.
| Bolt Size | Bolt Dia. [in] | Normal Fit [in] | Close Fit [in] | Loose Fit [in] |
| #0 | 0.0600 | 0.076 | 0.067 | 0.094 |
| #2 | 0.0860 | 0.102 | 0.094 | 0.116 |
| #4 | 0.1120 | 0.128 | 0.120 | 0.144 |
| #5 | 0.1250 | 0.156 | 0.141 | 0.172 |
| #6 | 0.1380 | 0.170 | 0.154 | 0.185 |
| #8 | 0.1640 | 0.196 | 0.180 | 0.213 |
| #10 | 0.1900 | 0.221 | 0.206 | 0.238 |
| 1/4" | 0.2500 | 0.281 | 0.266 | 0.297 |
| 5/16" | 0.3125 | 0.344 | 0.328 | 0.359 |
| 3/8" | 0.3750 | 0.406 | 0.391 | 0.422 |
| 7/16" | 0.4375 | 0.469 | 0.453 | 0.484 |
| 1/2" | 0.5000 | 0.562 | 0.531 | 0.609 |
| 5/8" | 0.6250 | 0.688 | 0.656 | 0.734 |
| 3/4" | 0.7500 | 0.812 | 0.781 | 0.906 |
| 7/8" | 0.8750 | 0.938 | 0.906 | 1.031 |
| 1" | 1.0000 | 1.094 | 1.031 | 1.156 |
| 1-1/8" | 1.1250 | 1.219 | 1.156 | 1.312 |
| 1-1/4" | 1.2500 | 1.344 | 1.281 | 1.438 |
| 1-3/8" | 1.3750 | 1.500 | 1.438 | 1.609 |
| 1-1/2" | 1.5000 | 1.625 | 1.562 | 1.734 |
The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 1-1, "Dimensions of Square and Hex Machine Screw Nuts." This table is used for smaller size hardware.
| Size | Nominal (Major) Diameter [in] |
Width Across Flats | Thickness | ||
| Nominal [in] | Minimum [in] | Minimum [in] | Maximum [in] | ||
| #0 | 0.060 | 5/32"(0.156) | 0.150 | 0.043 | 0.050 |
| #2 | 0.086 | 3/16"(0.188) | 0.180 | 0.057 | 0.066 |
| #4 | 0.112 | 1/4"(0.250) | 0.241 | 0.087 | 0.098 |
| #6 | 0.138 | 5/16"(0.312) | 0.302 | 0.102 | 0.114 |
| #8 | 0.164 | 11/32"(0.344) | 0.332 | 0.117 | 0.130 |
| #10 | 0.190 | 3/8"(0.375) | 0.362 | 0.117 | 0.130 |
| 1/4" | 0.250 | 7/16"(0.438) | 0.423 | 0.178 | 0.193 |
| 5/16" | 0.312 | 9/16"(0.562) | 0.545 | 0.208 | 0.225 |
| 3/8" | 0.375 | 5/8"(0.625) | 0.607 | 0.239 | 0.257 |
The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 4, "Dimensions of Hex Nuts and Hex Jam Nuts."
| Size | Nominal (Major) Diameter [in] |
Width Across Flats | Thickness | ||
| Minimum [in] | Maximum [in] | Minimum [in] | Maximum [in] | ||
| 1/4" | 0.2500 | 0.428 | 0.438 | 0.212 | 0.226 |
| 5/16" | 0.3125 | 0.489 | 0.500 | 0.258 | 0.273 |
| 3/8" | 0.3750 | 0.551 | 0.563 | 0.320 | 0.337 |
| 7/16" | 0.4375 | 0.675 | 0.688 | 0.365 | 0.385 |
| 1/2" | 0.5000 | 0.736 | 0.750 | 0.427 | 0.448 |
| 9/16" | 0.5625 | 0.861 | 0.875 | 0.473 | 0.496 |
| 5/8" | 0.6250 | 0.922 | 0.938 | 0.535 | 0.559 |
| 3/4" | 0.7500 | 1.088 | 1.125 | 0.617 | 0.665 |
| 7/8" | 0.8750 | 1.269 | 1.312 | 0.724 | 0.776 |
| 1" | 1.0000 | 1.450 | 1.500 | 0.831 | 0.887 |
| 1-1/8" | 1.1250 | 1.631 | 1.688 | 0.939 | 0.999 |
| 1-1/4" | 1.2500 | 1.812 | 1.875 | 1.030 | 1.094 |
| 1-3/8" | 1.3750 | 1.994 | 2.062 | 1.138 | 1.206 |
| 1-1/2" | 1.5000 | 2.175 | 2.250 | 1.245 | 1.317 |
| 1-5/8" | 1.6250 | 2.350 | 2.430 | 1.364 | 1.416 |
| 1-3/4" | 1.7500 | 2.538 | 2.625 | 1.460 | 1.540 |
| 1-7/8" | 1.8750 | 2.722 | 2.813 | 1.567 | 1.651 |
| 2" | 2.0000 | 2.900 | 3.000 | 1.675 | 1.763 |
The following table of flat washer dimensions was adapted from ASME B18.21.1, Table 11 for Type A Plain Washers. Type A washers come in 2 series: Narrow and Wide.
| Size | Basic Dia. [in] | Series | Inner Dia, Basic [in] |
Outer Dia, Basic [in] |
Thickness, Basic [in] |
| #0 | 0.0600 | --- | 0.078 | 0.188 | 0.020 |
| #2 | 0.0860 | --- | 0.094 | 0.250 | 0.020 |
| #4 | 0.1120 | --- | 0.125 | 0.312 | 0.032 |
| #6 | 0.1380 | --- | 0.156 | 0.375 | 0.049 |
| #8 | 0.1640 | --- | 0.188 | 0.438 | 0.049 |
| #10 | 0.1900 | --- | 0.219 | 0.500 | 0.049 |
| 1/4" | 0.2500 | Narrow | 0.281 | 0.625 | 0.065 |
| 1/4" | 0.2500 | Wide | 0.312 | 0.734 | 0.065 |
| 5/16" | 0.3125 | Narrow | 0.344 | 0.688 | 0.065 |
| 5/16" | 0.3125 | Wide | 0.375 | 0.875 | 0.083 |
| 3/8" | 0.3750 | Narrow | 0.406 | 0.812 | 0.065 |
| 3/8" | 0.3750 | Wide | 0.438 | 1.000 | 0.083 |
| 7/16" | 0.4375 | Narrow | 0.469 | 0.922 | 0.065 |
| 7/16" | 0.4375 | Wide | 0.500 | 1.250 | 0.083 |
| 1/2" | 0.5000 | Narrow | 0.531 | 1.062 | 0.095 |
| 1/2" | 0.5000 | Wide | 0.562 | 1.375 | 0.109 |
| 9/16" | 0.5625 | Narrow | 0.594 | 1.156 | 0.095 |
| 9/16" | 0.5625 | Wide | 0.625 | 1.469 | 0.109 |
| 5/8" | 0.6250 | Narrow | 0.656 | 1.312 | 0.095 |
| 5/8" | 0.6250 | Wide | 0.688 | 1.750 | 0.134 |
| 3/4" | 0.7500 | Narrow | 0.812 | 1.469 | 0.134 |
| 3/4" | 0.7500 | Wide | 0.812 | 2.000 | 0.148 |
| 7/8" | 0.8750 | Narrow | 0.938 | 1.750 | 0.134 |
| 7/8" | 0.8750 | Wide | 0.938 | 2.250 | 0.165 |
| 1" | 1.0000 | Narrow | 1.062 | 2.000 | 0.134 |
| 1" | 1.0000 | Wide | 1.062 | 2.500 | 0.165 |
| 1-1/8" | 1.1250 | Narrow | 1.250 | 2.250 | 0.134 |
| 1-1/8" | 1.1250 | Wide | 1.250 | 2.750 | 0.165 |
| 1-1/4" | 1.2500 | Narrow | 1.375 | 2.500 | 0.165 |
| 1-1/4" | 1.2500 | Wide | 1.375 | 3.000 | 0.165 |
| 1-3/8" | 1.3750 | Narrow | 1.500 | 2.750 | 0.165 |
| 1-3/8" | 1.3750 | Wide | 1.500 | 3.250 | 0.180 |
| 1-1/2" | 1.5000 | Narrow | 1.625 | 3.000 | 0.165 |
| 1-1/2" | 1.5000 | Wide | 1.625 | 3.500 | 0.180 |
| 1-5/8" | 1.6250 | --- | 1.750 | 3.750 | 0.180 |
| 1-3/4" | 1.7500 | --- | 1.875 | 4.000 | 0.180 |
| 1-7/8" | 1.8750 | --- | 2.000 | 4.250 | 0.180 |
| 2" | 2.0000 | --- | 2.125 | 4.500 | 0.180 |
Ask Free Sample of DS Fastener, Bolts, Nuts, Washer. Please Call +91 9664408767
Before being prepared for shipment to the customer, ASTM F1554 253MA Duplex Steel Fasteners Testing should be constructed in accordance with applicable standards and thoroughly tested for potential flaws.
Shear Test
Fatigue Test
Biaxial Test
Creep Test
Drop Weight Test
Flexure Test
| Powder coating | Zinc and yellow plated |
| Zinc and de-embrittled | Stayblack finish |
| Sherardised | Nickel |
| Green chromate | Geomet |
| Galvanised | Electro brass plated |
| Chrome | Chemical black |
| Products We Supplied | Description | Country |
| Duplex Steel Fasteners | DS U Bolts Supply | Malaysia, Venezuela, Serbia, Germany |
| ASTM A479 DSS Duplex Fasteners | Duplex Steel Nut Bolt Weight Chart In Kg | Azerbaijan, Oman, Gambia, South Africa, Belarus |
| Duplex Steel Bolts and Nuts Price List | Duplex Stainless Steel Eye Bolts | Romania, Puerto Rico, Slovakia, Yemen, Mongolia |
| Duplex Fasteners Manufacturers | Double Ended Studs In India | Switzerland, Singapore, Australia, Hong Kong |
| ASME SA479 Duplex Steel Fasteners In India | Duplex Stainless Steel Acorn Nuts Manufacturers In India | Belgium, Taiwan, New Zealand, Portugal |
| Duplex Steel Fastener | Duplex Nyloc Nuts Manufacturers In India | Nigeria, Ecuador, Chile, Czech Republic, Jordan |
| Duplex Bolt Torque Chart | DS Carriage Bolts Near Me | Kuwait, Bhutan, Nepal, Bulgaria |
| Duplex Steel Spring Washer | Duplex Steel Flat Washers | Estonia, Denmark, Hungary, Vietnam |
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