Super Duplex 2507 Fasteners
What is Super Duplex 2507 Fasteners
Super Duplex 2507 fasteners are renowned for their exceptional properties, making them popular in various applications.
A notable quality of Super Duplex 2507 fasteners is their amazing corrosion resistance. They display superior protection against corrosion, making them ideal for usage in harsh environments. The combination of high chromium and molybdenum in Super Duplex 2507 provides increased protection from corrosion even when in contact with chloride. This quality makes these fasteners appropriate for offshore oil and gas platforms, chemical processing plants, and marine environments.
Super Duplex 2507 fasteners have outstanding mechanical durability and can take on considerable weight and pressure. With a yield strength usually twice as much as standard austenitic stainless steel, they are excellent for tough structural uses; that demand both durability and strength. On top of their robustness, they are also quite ductile, able to deform and manage energy without shattering or breaking under extreme circumstances. This blend of strength and flexibility makes them ideal for applications that need both high load-bearing abilities and flexibility.

Super Duplex 2507 Stud Bolt, Super Duplex 2507 Plain Washer, Super Duplex 2507 Fasteners, Super Duplex 2507 Hex Nut, ASME SA182 Super Duplex 2507 Hex Nuts, 32760 Super Duplex Countersunk Bolts, Super Duplex 2507 Hex Bolt, UNS S250703 Self Drilling Screws.
The Super Duplex 2507 fasteners also have great weldability, making them easy to weld with traditional welding methods like gas tungsten arc welding (GTAW) and shielded metal arc welding (SMAW). This beneficial quality expedites the fabrication and installation processes, lowering costs.
Super Duplex 2507 fasteners show remarkable resistance to heat, maintaining their mechanical characteristics even at higher temperatures. They can hold their strength and defence against corrosion across a wide temperature range, making them appropriate for applications requiring high-temperature conditions.
These fasteners have a low thermal expansion rate, reducing the chance of thermal distortion or stress-related failure. This characteristic guarantees that the dimensions remain constant, making them a dependable choice for applications with frequent temperature fluctuations.


Super Duplex 2507 fasteners boast remarkable durability, allowing them to endure continual loads or shocks, hampering their structural consistency, making them well-suited for structures subject to rocking or forceful pressures.
At Sumit Impex, we pay special attention to ensuring our products are packaged securely to preserve their quality and safety. For this particular grade, we package it carefully so it is ready for shipping. Every item is wrapped and padded to protect against damage or potential contamination. We ensure everything is tightly packed to ensure the best quality upon delivery, always keeping customer satisfaction at the forefront of our minds!
Specification:- Super Duplex 2507 Fasteners
Specification | ASTM A479 / ASME SA479 |
Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
Size | M3 - M100 | 3/6″ - 4″ | Custom Sizes |
Fasteners Length | 3 mm - 200 mm | Custom Sizes |
Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
Washers Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Form | Hex, Threading, Square, Round as per Gauge Etc. |
Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
Equivalent Grade:- Super Duplex 2507 Fasteners
STANDARD | WERKSTOFF NR. | UNS |
Super Duplex 2507 | 1.4410 | S32750 / S32760 |
Chemical Composition:- Super Duplex 2507 Fasteners
Element | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
UNS S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
Mechanical Properties:- Super Duplex 2507 Fasteners
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Super Duplex Steel S32750 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
Dimensions:- Super Duplex 2507 Fasteners
- Dimensions Chart Of Bolts
- Dimensions Chart Of Stud Bolts
- Dimensions Chart Of Nuts
- Dimensions Chart Of Washer
Bolts Dimensions

Nominal Size or Basic Product Diameter | Full-Size Body Diameter, E | Width Across Flats, F | Width Across Corners, G | Head Height, H Basic | Radius of Fillet, R | Nominal Thread Length for Bolt Lengths, LT | |||||||||
inch | mm | Max | Min | Basic inch | Max | Min | Max | Min | Basic inch | Max | Min | Max | Min | 6 in. and Shoter | Over 6 in. |
1⁄4 | 0.25 | 0.26 | 0.237 | 7⁄16 | 0.438 | 0.425 | 0.505 | 0.484 | 11⁄64 | 0.188 | 0.15 | 0.03 | 0.01 | 0.75 | 1 |
5⁄16 | 0.3125 | 0.324 | 0.298 | 1⁄2 | 0.5 | 0.484 | 0.577 | 0.552 | 7⁄32 | 0.235 | 0.195 | 0.03 | 0.01 | 0.875 | 1.125 |
3⁄8 | 0.375 | 0.388 | 0.36 | 9⁄16 | 0.562 | 0.544 | 0.65 | 0.62 | 1⁄4 | 0.268 | 0.226 | 0.03 | 0.01 | 1 | 1.25 |
7⁄16 | 0.4375 | 0.452 | 0.421 | 5⁄8 | 0.625 | 0.603 | 0.722 | 0.687 | 19⁄64 | 0.316 | 0.272 | 0.03 | 0.01 | 1.125 | 1.375 |
1⁄2 | 0.5 | 0.515 | 0.482 | 3⁄4 | 0.75 | 0.725 | 0.866 | 0.826 | 11⁄32 | 0.364 | 0.302 | 0.03 | 0.01 | 1.25 | 1.5 |
5⁄8 | 0.625 | 0.642 | 0.605 | 15⁄16 | 0.938 | 0.906 | 1.083 | 1.033 | 27⁄64 | 0.444 | 0.378 | 0.06 | 0.02 | 1.5 | 1.75 |
3⁄4 | 0.75 | 0.768 | 0.729 | 11⁄8 | 1.125 | 1.088 | 1.299 | 1.24 | 1⁄2 | 0.524 | 0.455 | 0.06 | 0.02 | 1.75 | 2 |
7⁄8 | 0.875 | 0.895 | 0.852 | 1 5⁄16 | 1.312 | 1.269 | 1.516 | 1.447 | 37⁄64 | 0.604 | 0.531 | 0.06 | 0.02 | 2 | 2.25 |
1 | 1 | 1.022 | 0.976 | 1 1⁄2 | 1.5 | 1.45 | 1.732 | 1.653 | 43⁄64 | 0.7 | 0.591 | 0.09 | 0.03 | 2.25 | 2.5 |
1 1⁄8 | 1.125 | 1.149 | 1.098 | 1 11⁄16 | 1.688 | 1.631 | 1.949 | 1.859 | 3⁄4 | 0.78 | 0.658 | 0.09 | 0.03 | 2.5 | 2.75 |
1 1⁄4 | 1.25 | 1.277 | 1.223 | 1 7⁄8 | 1.875 | 1.812 | 2.165 | 2.066 | 27⁄32 | 0.876 | 0.749 | 0.09 | 0.03 | 2.75 | 3 |
1 3⁄8 | 1.375 | 1.404 | 1.345 | 2 1⁄16 | 2.062 | 1.994 | 2.382 | 2.273 | 29⁄32 | 0.94 | 0.81 | 0.09 | 0.03 | 3 | 3.25 |
1 1⁄2 | 1.5 | 1.531 | 1.47 | 2 1⁄4 | 2.25 | 2.175 | 2.598 | 2.48 | 1 | 1.036 | 0.902 | 0.09 | 0.03 | 3.25 | 3.5 |
1 5⁄8 | 1.625 | 1.658 | 1.591 | 2 7⁄16 | 2.438 | 2.356 | 2.815 | 2.616 | 1 3⁄32 | 1.116 | 0.978 | 0.09 | 0.03 | 3.5 | 3.75 |
1 3⁄4 | 1.75 | 1.785 | 1.716 | 2 5⁄8 | 2.625 | 2.538 | 3.031 | 2.893 | 1 5⁄32 | 1.196 | 1.054 | 0.12 | 0.04 | 3.75 | 4 |
1 7⁄8 | 1.875 | 1.912 | 1.839 | 2 13⁄16 | 2.812 | 2.719 | 3.248 | 3.099 | 1 1⁄4 | 1.276 | 1.13 | 0.12 | 0.04 | 4 | 4.25 |
2 | 2 | 2.039 | 1.964 | 3 | 3 | 2.9 | 3.464 | 3.306 | 1 11⁄32 | 1.388 | 1.175 | 0.12 | 0.04 | 4.25 | 4.5 |
2 1⁄4 | 2.25 | 2.305 | 2.214 | 3 3⁄8 | 3.375 | 3.262 | 3.897 | 3.719 | 1 1⁄2 | 1.548 | 1.327 | 0.19 | 0.06 | 4.75 | 5 |
2 1⁄2 | 2.5 | 2.559 | 2.461 | 3 3⁄4 | 3.75 | 3.625 | 4.33 | 4.133 | 1 21⁄32 | 1.708 | 1.479 | 0.19 | 0.06 | 5.25 | 5.5 |
2 3⁄4 | 2.75 | 2.827 | 2.711 | 4 1⁄8 | 4.125 | 3.988 | 4.763 | 4.546 | 1 13⁄16 | 1.869 | 1.632 | 0.19 | 0.06 | 5.75 | 6 |
3 | 3 | 3.081 | 2.961 | 4 1⁄2 | 4.5 | 4.35 | 5.196 | 4.959 | 2 | 2.06 | 1.815 | 0.19 | 0.06 | 6.25 | 6.5 |
3 1⁄4 | 3.25 | 3.335 | 3.21 | 4 7⁄8 | 4.875 | 4.712 | 5.629 | 5.372 | 2 3⁄16 | 2.251 | 1.936 | 0.19 | 0.06 | 6.75 | 7 |
3 1⁄2 | 3.5 | 3.589 | 3.461 | 5 1⁄4 | 5.25 | 5.075 | 6.062 | 5.786 | 2 5⁄16 | 2.38 | 2.057 | 0.19 | 0.06 | 7.25 | 7.5 |
3 3⁄4 | 3.75 | 3.858 | 3.726 | 5 5⁄8 | 5.625 | 5.437 | 6.495 | 6.198 | 2 1⁄2 | 2.572 | 2.241 | 0.19 | 0.06 | 7.75 | 8 |
4 | 4 | 4.111 | 3.975 | 6 | 6 | 5.8 | 6.928 | 6.612 | 2 11⁄16 | 2.764 | 2.424 | 0.19 | 0.06 | 8.25 | 8.5 |
Stud Bolt Dimensions

Nominal Size Diameter, D inch | Tap End Full Thread Length, BM | Umax = 2P | Minimum Nut End Full Thread Length, Bmin | ||||||
Nominal | Min. | Max. | UNC & NC-5 Thread | UNF Thread | 8UN Thread | L ≤ 10 | 10 < L ≤ 16 | L > 16 | |
1/4 | 0.375 | 0.350 | 0.400 | 0.100 | 0.071 | ... | 0.750 | 1.000 | 1.500 |
5/16 | 0.469 | 0.440 | 0.498 | 0.111 | 0.083 | -- | 0.875 | 1.125 | 1.625 |
3/8 | 0.563 | 0.532 | 0.594 | 0.125 | 0.083 | -- | 1.000 | 1.250 | 1.750 |
7/16 | 0.656 | 0.620 | 0.692 | 0.143 | 0.100 | -- | 1.125 | 1.375 | 1.875 |
1/2 | 0.750 | 0.708 | 0.792 | 0.154 | 0.100 | -- | 1.250 | 1.500 | 2.000 |
9/16 | 0.844 | 0.802 | 0.896 | 0.167 | 0.111 | -- | 1.375 | 1.625 | 2.125 |
5/8 | 0.938 | 0.892 | 0.983 | 0.182 | 0.111 | -- | 1.500 | 1.750 | 2.250 |
3/4 | 1.1.25 | 1.075 | 1.175 | 0.200 | 0.125 | -- | 1.750 | 2.000 | 2.500 |
7/8 | 1.313 | 1.258 | 1.368 | 0.222 | 0.143 | -- | 2.000 | 2.250 | 2.750 |
1 | 1.500 | 1.438 | 1.562 | 0.250 | 0.167 | -- | 2.250 | 2.500 | 3.000 |
1 1/8 | 1.688 | 1.625 | 1.750 | 0.286 | 0.167 | 0.250 | 2.500 | 2.750 | 3.250 |
1 1/4 | 1.875 | 1.813 | 1.938 | 0.286 | 0.167 | 0.250 | 2.750 | 3.000 | 3.500 |
1 3/8 | 2.063 | 2.000 | 2.125 | 0.333 | 0.167 | 0.250 | 3.000 | 3.250 | 3.750 |
1 1/2 | 2.250 | 2.188 | 2.313 | 0.333 | 0.167 | 0.250 | 3.250 | 3.500 | 4.000 |
1 5/8 | 2.438 | 2.375 | 2.500 | -- | -- | 0.250 | 3.500 | 3.750 | 4.250 |
1 3/4 | 2.625 | 2.563 | 2.688 | 0.400 | -- | 0.250 | 3.750 | 4.000 | 4.500 |
1 7/8 | 2.813 | 2.750 | 2.875 | -- | -- | 0.250 | 4.000 | 4.250 | 4.750 |
2 | 3.000 | 2.925 | 3.075 | 0.444 | -- | 0.250 | 4.250 | 4.500 | 5.000 |
2 1/4 | 3.375 | 3.300 | 3.450 | 0.444 | -- | 0.250 | 4.750 | 5.000 | 5.500 |
2 1/2 | 3.750 | 3.675 | 3.825 | 0.500 | -- | 0.250 | 5.250 | 5.500 | 6.000 |
2 3/4 | 4.125 | 4.050 | 4.200 | 0.500 | -- | 0.250 | 5.750 | 6.000 | 6.500 |
3 | 4.500 | 4.425 | 4.575 | 0.500 | -- | 0.250 | -- | 6.500 | 7.000 |
3 1/4 | 4.875 | 4.775 | 4.975 | 0.500 | -- | 0.250 | -- | 7.000 | 7.500 |
3 1/2 | 5.250 | 5.150 | 5.350 | 0.500 | -- | 0.250 | -- | 7.500 | 8.000 |
3 3/4 | 5.625 | 5.525 | 5.725 | 0.500 | -- | 0.250 | -- | 8.000 | 8.500 |
4 | 6.000 | 5.900 | 6.100 | 0.500 | -- | 0.250 | -- | 8.500 | 9.000 |
Nut Dimensions

Nominal Size inch | Basic Major Diameter of Thread | Width Across Flats, F | Width Across Corners, G | Thickness Heavy Hex Nuts, H | Thickness Heavy Hex Jam Nuts, H1 | Maximum Runout of Bearing Surface to Thread Axis, FIM | |||||||||
Heavy HEX NUTS | Heavy Hex Jam Nuts | ||||||||||||||
Specified Proof load | |||||||||||||||
Basic inch | Min. | Max | Min. | Max | Basic inch | Min. | Max | Basic inch | Min. | Max | Up to 150,000 psi | 150,000 psi and Greater | All Strength Levels | ||
1/4 | 0.2500 | 1/2 | 0.488 | 0.500 | 0.556 | 0.577 | 15/64 | 0.218 | 0.250 | 11/64 | 0.156 | 0.188 | 0.017 | 0.011 | 0.017 |
5/16 | 0.3125 | 9/16 | 0.546 | 0.562 | 0.622 | 0.650 | 19/64 | 0.280 | 0.314 | 13/64 | 0.186 | 0.220 | 0.020 | 0.012 | 0.020 |
3/8 | 0.3750 | 11/16 | 0.669 | 0.688 | 0.763 | 0.794 | 23/64 | 0.341 | 0.377 | 15/64 | 0.216 | 0.252 | 0.021 | 0.014 | 0.021 |
7/16 | 0.4375 | 3/4 | 0.728 | 0.750 | 0.830 | 0.866 | 27/64 | 0.403 | 0.441 | 17/64 | 0.247 | 0.285 | 0.022 | 0.015 | 0.022 |
1/2 | 0.5000 | 7/8 | 0.850 | 0.875 | 0.969 | 1.010 | 31/64 | 0.464 | 0.504 | 19/64 | 0.277 | 0.317 | 0.023 | 0.016 | 0.023 |
9/16 | 0.5625 | 15/16 | 0.909 | 0.938 | 1.037 | 1.083 | 35/64 | 0.526 | 0.568 | 21/64 | 0.307 | 0.349 | 0.024 | 0.017 | 0.024 |
5/8 | 0.6250 | 1 1/16 | 1.031 | 1.062 | 1.175 | 1.227 | 39/64 | 0.587 | 0.631 | 23/64 | 0.337 | 0.381 | 0.025 | 0.018 | 0.025 |
3/4 | 0.7500 | 1 1/4 | 1.212 | 1.250 | 1.382 | 1.443 | 47/64 | 0.710 | 0.758 | 27/64 | 0.398 | 0.446 | 0.027 | 0.020 | 0.027 |
7/8 | 0.8750 | 1 7/16 | 1.394 | 1.438 | 1.589 | 1.660 | 55/64 | 0.833 | 0.885 | 31/64 | 0.458 | 0.510 | 0.029 | 0.022 | 0.029 |
1 | 1.0000 | 1 5/8 | 1.575 | 1.625 | 1.796 | 1.876 | 63/64 | 0.956 | 1.012 | 35/64 | 0.519 | 0.575 | 0.031 | 0.024 | 0.031 |
1 1/8 | 1.1250 | 1 13/16 | 1.756 | 1.812 | 2.002 | 2.093 | 1 7/64 | 1.079 | 1.139 | 39/64 | 0.579 | 0.639 | 0.033 | 0.027 | 0.033 |
1 1/4 | 1.2500 | 2 | 1.938 | 2.000 | 2.209 | 2.309 | 1 7/32 | 1.187 | 1.251 | 23/32 | 0.687 | 0.751 | 0.035 | 0.030 | 0.035 |
1 3/8 | 1.3750 | 2 3/16 | 2.119 | 2.188 | 2.416 | 2.526 | 1 11/32 | 1.310 | 1.378 | 25/32 | 0.747 | 0.815 | 0.038 | 0.033 | 0.038 |
1 1/2 | 1.5000 | 2 3/8 | 2.300 | 2.375 | 2.622 | 2.742 | 1 15/32 | 1.433 | 1.505 | 27/32 | 0.808 | 0.880 | 0.041 | 0.036 | 0.041 |
1 5/8 | 1.6250 | 2 9/16 | 2.481 | 2.562 | 2.828 | 2.959 | 1 19/32 | 1.556 | 1.632 | 29/32 | 0.868 | 0.944 | 0.044 | 0.038 | 0.044 |
1 3/4 | 1.7500 | 2 3/4 | 2.662 | 2.750 | 3.035 | 3.175 | 1 23/32 | 1.679 | 1.759 | 31/32 | 0.929 | 1.009 | 0.048 | 0.041 | 0.048 |
1 7/8 | 1.8750 | 2 15/16 | 2.844 | 2.938 | 3.242 | 3.392 | 1 27/32 | 1.802 | 1.886 | 1 1/32 | 0.989 | 1.073 | 0.051 | 0.044 | 0.051 |
2 | 2.0000 | 3 1/8 | 3.025 | 3.125 | 3.449 | 3.608 | 1 31/32 | 1.925 | 2.013 | 1 3/32 | 1.050 | 1.138 | 0.055 | 0.047 | 0.055 |
2 1/4 | 2.2500 | 3 1/2 | 3.388 | 3.500 | 3.862 | 4.041 | 2 13/64 | 2.155 | 2.251 | 1 13/64 | 1.155 | 1.251 | 0.061 | 0.052 | 0.061 |
2 1/2 | 2.5000 | 3 7/8 | 3.750 | 3.875 | 4.275 | 4.474 | 2 29/64 | 2.401 | 2.505 | 1 29/64 | 1.401 | 1.505 | 0.068 | 0.058 | 0.068 |
2 3/4 | 2.7500 | 4 1/4 | 4.112 | 4.250 | 4.688 | 4.907 | 2 45/64 | 2.647 | 2.759 | 1 37/64 | 1.522 | 1.634 | 0.074 | 0.064 | 0.074 |
3 | 3.0000 | 4 5/8 | 4.475 | 4.625 | 5.102 | 5.340 | 2 61/64 | 2.893 | 3.013 | 1 45/64 | 1.643 | 1.763 | 0.081 | 0.070 | 0.081 |
3 1/4 | 3.2500 | 5 | 4.838 | 5.000 | 5.515 | 5.774 | 3 3/16 | 3.124 | 3.252 | 1 13/16 | 1.748 | 1.876 | 0.087 | 0.075 | 0.087 |
3 1/2 | 3.5000 | 5 3/8 | 5.200 | 5.375 | 5.928 | 6.207 | 3 7/16 | 3.370 | 3.506 | 1 15/16 | 1.870 | 2.006 | 0.094 | 0.081 | 0.094 |
3 3/4 | 3.7500 | 5 3/4 | 5.562 | 5.750 | 6.341 | 6.640 | 3 11/16 | 3.616 | 3.760 | 2 1/16 | 1.990 | 2.134 | 0.100 | 0.087 | 0.100 |
4 | 4.0000 | 6 1/8 | 5.925 | 6.125 | 6.755 | 7.073 | 3 15/16 | 3.862 | 4.014 | 2 3/16 | 2.112 | 2.264 | 0.107 | 0.093 | 0.107 |
Washer Dimensions

Nominal Size | T | Clipped Width E, Min. | |||||||
I.D. | O.D. | Standard | Extra Thick | ||||||
[Note (1)] | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | [Note (2)] |
12 | 14.4 | 14 | 27 | 25.7 | 4.6 | 3.1 | 10 | 8 | 10.5 |
16 | 18.4 | 18 | 34 | 32.4 | 4.6 | 3.1 | 10 | 8 | 14 |
20 | 22.5 | 22 | 42 | 40.4 | 4.6 | 3.1 | 10 | 8 | 17.5 |
22 | 24.5 | 24 | 44 | 42.4 | 4.6 | 3.4 | 10 | 8 | 19.2 |
24 | 26.5 | 26 | 50 | 48.4 | 4.6 | 3.4 | 10 | 8 | 21 |
27 | 30.5 | 30 | 56 | S4.1 | 4.6 | 3.4 | 10 | 8 | 23.6 |
30 | 33.6 | 33 | 60 | 58.1 | 4.6 | 3.4 | 10 | 8 | 26.2 |
36 | 39.6 | 39 | 72 | 70.1 | 4.6 | 3.4 | 10 | 8 | 31.S |
42 | 45.6 | 45 | 84 | 81.8 | 7.2 | 4.6 | 10 | 8 | 36.7 |
48 | 52.7 | 52 | 95 | 92.8 | 7.2 | 4.6 | 10 | 8 | 42 |
56 | 62.7 | 62 | 107 | 104.8 | 8.7 | 6.1 | 10 | 8 | 49 |
64 | 70.7 | 70 | 118 | 115.8 | 8.7 | 6.1 | 10 | 8 | 56 |
72 | 78.7 | 78 | 130 | 127.5 | 8.7 | 6.1 | 10 | 8 | 63 |
80 | 86.9 | 86 | 142 | 139.5 | 8.7 | 6.1 | 10 | 8 | 70 |
90 | 96.9 | 96 | 159 | 156.5 | 8.7 | 6.1 | 10 | 8 | 78.7 |
100 | 107.9 | 107 | 176 | 173.5 | 8.7 | 6.1 | 10 | 8 | 87.5 |
Weight Chart:- Super Duplex 2507 Fasteners
LENGTHS | #2 | #3 | #4 | #5 | #6 | #8 | #10 | #12 | 1/4″ | 5/16″ | 3/8″ |
1/8 | 0.40 | 0.55 | 0.70 | 1.1 | 1.4 | — | — | — | — | — | — |
3/16 | 0.50 | 0.70 | 0.90 | 1.2 | 1.5 | 2.5 | 3.9 | — | — | — | — |
1/4 | 0.60 | 0.80 | 1.00 | 1.4 | 1.7 | 2.8 | 4.3 | 5.6 | 8.5 | — | — |
5/16 | 0.60 | 0.90 | 1.20 | 1.5 | 1.9 | 3.1 | 4.6 | 6.1 | 9.1 | 16.7 | — |
3/8 | 0.70 | 0.90 | 1.30 | 1.7 | 2.1 | 3.4 | 5.0 | 6.5 | 9.8 | 17.7 | 29.2 |
7/16 | 0.80 | 1.00 | 1.50 | 1.9 | 2.2 | 3.6 | 5.4 | 6.9 | 10.4 | 18.8 | 30.7 |
1/2 | 0.80 | 1.10 | 1.60 | 2.0 | 2.4 | 3.9 | 5.8 | 7.4 | 11.1 | 19.8 | 32.2 |
9/16 | 0.90 | 1.20 | 1.70 | 2.2 | 2.6 | 4.2 | 6.2 | 7.8 | 11.7 | 20.9 | 33.6 |
5/8 | 1.00 | 1.30 | 1.80 | 2.3 | 2.8 | 4.5 | 6.6 | 8.3 | 12.4 | 21.9 | 35.1 |
3/4 | 1.10 | 1.50 | 2.10 | 2.6 | 3.2 | 5.0 | 7.3 | 9.2 | 13.6 | 24.0 | 38.0 |
7/8 | 1.30 | 1.70 | 2.30 | 3.0 | 3.5 | 5.6 | 8.1 | 10.1 | 14.9 | 26.1 | 41.0 |
1″ | 1.40 | 1.90 | 2.50 | 3.4 | 3.9 | 6.2 | 8.9 | 11.0 | 16.1 | 28.8 | 44.0 |
1-1/8″ | 1.50 | 2.00 | 2.80 | 3.8 | 4.3 | 6.7 | 9.6 | 11.9 | 17.4 | 30.2 | 47.0 |
1-1/4″ | 1.60 | 2.20 | 3.00 | 4.1 | 4.6 | 7.3 | 10.4 | 12.8 | 18.7 | 32.3 | 49.8 |
1-1/2″ | 1.80 | 2.50 | 3.50 | 4.7 | 5.3 | 8.3 | 11.9 | 14.7 | 21.2 | 36.5 | 55.8 |
1-3/4″ | 2.10 | 2.90 | 4.00 | 5.3 | 6.1 | 9.4 | 13.5 | 16.5 | 23.7 | 40.7 | 61.7 |
2″ | 2.40 | 3.30 | 4.50 | 6.0 | 6.8 | 10.6 | 15.0 | 18.3 | 26.2 | 44.8 | 67.6 |
2-1/4″ | 2.60 | 3.60 | 5.00 | 6.7 | 7.6 | 11.8 | 16.6 | 20.1 | 28.8 | 19.0 | 73.5 |
2-1/2″ | 2.80 | 3.90 | 5.50 | 7.3 | 8.3 | 12.9 | 18.1 | 22.0 | 31.3 | 53.2 | 79.5 |
2-3/4″ | 3.10 | 4.30 | 6.00 | 7.9 | 9.1 | 13.9 | 19.7 | 23.8 | 33.9 | 57.3 | 85.3 |
3″ | 3.40 | 4.70 | 6.50 | 8.6 | 9.8 | 15.0 | 21.2 | 25.6 | 36.4 | 61.5 | 91.3 |
Different Types:- Super Duplex 2507 Fasteners


















































Price List:- Super Duplex 2507 Fasteners
- Super Duplex S32750 Hex Bolt
USD $3.3 – $10.03 / Kg - Super Duplex S32751 Hex Nut
USD $3.08 – $10.18 / Kg - Super Duplex S32752 Stud Bolt
USD $3.48 – $10.48 / Kg - Super Duplex S32753 U Bolt
USD $3.21 – $10.81 / Kg - UNS S31803 Spring Washer
USD $3.17 – $10.45 / Kg - Astm A479 Super Duplex 2750 Threaded Rod
USD $3.14 – $8 / Kg - Super Duplex 2750 Heavy Hex Bolt
USD $3.16 – $10.92 / Kg

Application Industries
- Construction
- Bridges
- Petrochemical Industry
- Ship Building
- Engineering
- General Structural Purposes
- Offshore and Onshore Services

Packaging Industries
We Sumit Impex Metal Ensure the Best Quality of Packing, Because It Plays an Important Role Especially in the Case of International Shipments in Which Consignment Passes Through Various Channels to Reach the Ultimate Destination, So We Put Extraordinary Concern Regarding Packaging.
We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
- Boxes and Crates
- Shrink-wrapped
- Carton boxes
- Wooden pallets
- Wooden boxes
- Wooden crates

Testings (Destructive, Non Destructive)
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Dye Penetrant Test (DP Test)
- Bend Test
- Micro Test
- Macro Test
- Hardness Test
- Flaring Test
- Flattening Test
- Hydrostatic Test
- Radiography Test
- Ultra Sonic Test (UT)
- Eddy Current Testing
- Impact Test
