
Honesty Steel & Alloys Ltd. is a trusted manufacturer, exporter and supplier of Stainless Steel 310/310S Fasteners, offering high-quality industrial fastening solutions for demanding applications involving elevated temperatures, oxidation and corrosion.
Our SS 310/310S Fasteners are manufactured according to applicable ASTM, ASME, DIN, ISO, BS and other international requirements, subject to customer specifications. We supply fasteners in different sizes, threads, finishes, head configurations and material conditions for industrial, engineering, fabrication and high-temperature applications.
At Honesty Steel & Alloys Ltd., we supply Stainless Steel 310/310S Fasteners in standard and customized sizes. Our range includes hex bolts, heavy hex bolts, hex nuts, heavy hex nuts, machine screws, socket head cap screws, stud bolts, threaded rods, flat washers, spring washers, U bolts, anchor bolts and customized fasteners.
SS 310/310S Hex Bolts feature six-sided heads and are designed for installation with standard spanners or wrenches. They are available in different diameters, lengths and thread configurations.
SS 310 Fasteners are manufactured from Grade 310 stainless steel and are particularly suited for high-temperature environments. They can be supplied as bolts, nuts, screws, washers, stud bolts and threaded rods in different dimensions and thread configurations. SS 310S Fasteners use the low-carbon version of Grade 310. The reduced carbon content makes 310S preferable for many fabricated and welded applications where minimizing carbide precipitation is important. SS 310S nuts, bolts and other fasteners provide excellent resistance to oxidation and good performance in elevated-temperature service.
| Property | Specification |
|---|---|
| Product | Stainless Steel 310/310S Fasteners |
| Material | Austenitic Stainless Steel |
| Grade | SS 310 / 310S |
| UNS | S31000 / S31008 |
| Common Designation | A2 Stainless Steel |
| Standards | ASTM / ASME, ISO, DIN, BS, EN |
| Bolt Standards | ASME B18.2.1, DIN, ISO, BS |
| Nut Standards | ASME B18.2.2, DIN, ISO, BS |
| Screw Standards | ASME / ISO / DIN / BS |
| Thread | Metric / UNC / UNF / BSW / BSF |
| Thread Type | Coarse / Fine |
| Surface | Plain / Passivated / Polished |
| Finish | Natural / Bright / Customized |
| Types | Nuts, Bolts, Screws, Socket Screw, Sockets, Studs, Screw, Nut, Spring Washers, Hex Set Screw, Socket Hexagon Head Screw, Cap Screw, Wing Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Studs, Anchors, Hex Nut,Marine Anchors, Hexagon Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Anchor Bolt, U- Bolts, J Bolts, T-Head Bolts, Mushroom Head Square Neck Bolts, Eye Bolt, Foundation Bolts, Structural Bolts |
| Manufacturing | Cold Forged / Hot Forged / Machined |
| Size | Metric & Imperial |
| Supply Condition | Annealed / Cold Worked / As Specified |
| Application | Industrial, Construction, Engineering, Fabrication |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
| SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | – | X8CrNi25-21 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 310 | 0.015 max | 2.0 max | 0.15 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
| SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
| Grade | Density | Melting Point | Tensilee Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|---|
| SS 310/310S | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Stainless Steel 310/310S Carriage Bolts
Stainless Steel 310/310S Eye Bolts
Stainless Steel 310/310S Self Tapping Screws
Stainless Steel 310/310S Anchor Bolt
Stainless Steel 310/310S U Bolts
Stainless Steel 310/310S Machine Screws
Stainless Steel 310/310S Socket Screws
Stainless Steel 310/310S Hex Coupling Nut
Stainless Steel 310/310S Hex Nuts
Stainless Steel 310/310S Lock Nuts
Stainless Steel 310/310S Shoulder Bolts
Stainless Steel 310/310S T Head Bolts
Stainless Steel 310/310S Flat Washers
Stainless Steel 310/310S Lock Washers
Stainless Steel 310/310S Stud Bolts
Stainless Steel 310/310S Flanged Bolts
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| Types | Size Range | Class | Standards |
|---|---|---|---|
| Hex Nut | M3 to M30 | A2 – 70/80, A4 – 70/80 | DIN 934 / ISO 4032 |
| Hex Head Screw (Full Thread) | M3 to M30 | A2 – 70/80, A4 – 70/80 | DIN 933 / ISO 4017 |
| Hex Head Bolt (Partial Thread) | M4 to M30 | A2 – 70/80, A4 – 70/80 | DIN 931 / ISO 4014 |
| Threaded Rod | M3 to M36 | A2 – 70/80, A4 – 70/80 | DIN 975 |
| Plain Washer | M3 to M64 | A2, A4 | DIN 125 A |
| Flat – Section Spring Washer | M3 to M36 | A2, A4 | DIN 127 B |
| Square – Section Spring Washer | M3 to M36 | A2, A4 | DIN 7980 |
| Socket Head Cap Screw | M3 to M30 | A2 – 70/80, A4 – 70/80 | DIN 912 / ISO 4762 |
| Product | Typical Imperial Range |
|---|---|
| Bolts | 1/8" to 4" |
| Screws | 1/8" to 2" |
| Nuts | 1/8" to 4" |
| Washers | 1/8" to 4" |
| Studs | 1/4" to 4" |
| Threaded Rods | 1/4" to 4" |
| ASME B18.1.1 | Small Solid Rivets | ASME B18.8.1 | Clevis Pins and Cotter Pins |
| ASME B18.1.2 | Large Rivets | ASME B18.8.2 | Taper Pins, Dowel Pins, Straight Pins, Grooved Pins and Spring Pins |
| ASME B18.2.1 | Square and Hex Bolts and Screws | ASME B18.9 | Plow Bolts |
| ASME B18.2.2 | Square and Hex Nuts | ASME B18.10 | Track Bolts and Nuts |
| ASME B18.2.6 | Fasteners for use in Structural Applications | ASME B18.11 | Miniature Screws |
| ASME B18.3 | Socket Cap, Shoulder and Set Screws | ASME B18.13 | Screws and Washer Assemblies (Sems) |
| ASME B18.5 | Round Head Bolts | ASME B18.15 | Forged Eyebolts |
| ASME B18.6.2 | Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws | ASME B18.17 | Wing Nuts, Thumb Screws and Wing Screws |
| ASME B18.6.3 | Machine Screws and Machine Screws Nuts | ASME B18.21.1 | Lock Washers |
| ASME B18.6.4 | Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws | ASME B18.22.1 | Plain Washers |
| ASME B18.7 | General Purpose Semi- Tubular Rivets, Full Tubular Rivets, Split Rivets and Rivet Caps | ASME B18.23.1 | Beveled Washers |
| Nominal or Basic Product Diameter | E | F | G | H | J | LT (Thread Length) | Y | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Diameter | Width Across Flats | Width Across Corners | Head Height | Wrenching Height | For Screw Lengths | For Screw Lengths | Transition Thread Length | ||||||||
| 1/4 | 0.25 | 0.25 | 0.245 | 7/16 | 0.438 | 0.428 | 0.505 | 0.488 | 5/32 | 0.163 | 0.150 | 0.106 | 0.750 | 1.000 | 0.250 |
| 5/16 | 0.3125 | 0.3125 | 0.3065 | 1/2 | 0.500 | 0.489 | 0.577 | 0.557 | 13/64 | 0.211 | 0.195 | 0.140 | 0.875 | 1.125 | 0.278 |
| 3/8 | 0.375 | 0.375 | 0.369 | 9/16 | 0.562 | 0.551 | 0.650 | 0.628 | 15/64 | 0.243 | 0.226 | 0.160 | 1.000 | 1.250 | 0.312 |
| 7/16 | 0.4375 | 0.4375 | 0.4305 | 5/8 | 0.625 | 0.612 | 0.722 | 0.698 | 9/32 | 0.291 | 0.272 | 0.195 | 1.125 | 1.375 | 0.357 |
| 1/2 | 0.5 | 0.5 | 0.493 | 3/4 | 0.750 | 0.736 | 0.866 | 0.840 | 5/16 | 0.323 | 0.302 | 0.215 | 1.250 | 1.500 | 0.385 |
| 9/16 | 0.5625 | 0.5625 | 0.5545 | 13/16 | 0.812 | 0.798 | 0.938 | 0.910 | 23/64 | 0.371 | 0.348 | 0.250 | 1.375 | 1.625 | 0.417 |
| 5/8 | 0.625 | 0.625 | 0.617 | 15/16 | 0.938 | 0.922 | 1.083 | 1.051 | 25/64 | 0.403 | 0.378 | 0.269 | 1.500 | 1.750 | 0.455 |
| 3/4 | 0.75 | 0.75 | 0.741 | 1-1/8 | 1.125 | 1.100 | 1.299 | 1.254 | 15/32 | 0.483 | 0.455 | 0.324 | 1.750 | 2.000 | 0.500 |
| 7/8 | 0.875 | 0.875 | 0.866 | 1-5/16 | 1.312 | 1.285 | 1.516 | 1.465 | 35/64 | 0.563 | 0.531 | 0.378 | 2.000 | 2.250 | 0.556 |
| 1 | 1 | 1 | 0.99 | 1-1/2 | 1.500 | 1.469 | 1.732 | 1.675 | 39/64 | 0.627 | 0.591 | 0.416 | 2.250 | 2.500 | 0.625 |
| 1-1/8 | 1.125 | 1.125 | 1.114 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 11/16 | 0.718 | 0.658 | 0.461 | 2.500 | 2.750 | 0.714 |
| 1-1/4 | 1.25 | 1.25 | 1.239 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 25/32 | 0.813 | 0.749 | 0.530 | 2.750 | 3.000 | 0.714 |
| 1-1/2 | 1.5 | 1.5 | 1.488 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 15/16 | 0.974 | 0.902 | 0.640 | 3.250 | 3.500 | 0.833 |
| Nominal Size or Basic Major Thread Diameter | F | G | H | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats | Width Across Corners | Thickness | |||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | ||
| 1/4 | .2500 | 1/2 | .500 | .488 | .577 | .556 | 15/64 | .250 | .218 |
| 5/16 | .3125 | 9/16 | .562 | .546 | .650 | .622 | 19/64 | .314 | .280 |
| 3/8 | .3750 | 11/16 | .688 | .669 | .794 | .763 | 23/64 | .377 | .341 |
| 7/16 | .4375 | 3/4 | .750 | .728 | .866 | .830 | 27/64 | .441 | .403 |
| 1/2 | .5000 | 7/8 | .875 | .850 | 1.010 | .969 | 31/64 | .504 | .464 |
| 9/16 | .5625 | 15/16 | .938 | .909 | 1.083 | 1.037 | 35/64 | .568 | .526 |
| 5/8 | .6250 | 1-1/16 | 1.062 | 1.031 | 1.227 | 1.175 | 39/64 | .631 | .587 |
| 3/4 | .7500 | 1-1/4 | 1.250 | 1.212 | 1.443 | 1.382 | 47/64 | .758 | .710 |
| 7/8 | .8750 | 1-7/16 | 1.438 | 1.394 | 1.660 | 1.589 | 55/64 | .885 | .833 |
| 1 | 1.0000 | 1-5/8 | 1.325 | 1.575 | 1.876 | 1.796 | 63/64 | 1.012 | .956 |
| 1-1/8 | 1.1250 | 1-13/16 | 1.812 | 1.756 | 2.093 | 2.002 | 1-7/64 | 1.139 | 1.079 |
| 1-1/4 | 1.2500 | 2 | 2.000 | 1.938 | 2.309 | 2.209 | 1-7/32 | 1.251 | 1.187 |
| 1-3/8 | 1.3750 | 2-3/16 | 2.188 | 2.119 | 2.526 | 2.416 | 1-11/32 | 1.378 | 1.460 |
| 1-1/2 | 1.5000 | 2-3/8 | 2.375 | 2.300 | 2.742 | 2.622 | 1-15/32 | 1.505 | 1.433 |
| 1-5/8 | 1.6250 | 2-9/16 | 2.562 | 2.481 | 2.959 | 2.828 | 1-19/32 | 1.632 | 1.556 |
| 1-3/4 | 1.7500 | 2-3/4 | 2.750 | 2.662 | 3.175 | 3.035 | 1-23/32 | 1.759 | 1.679 |
| 2 | 2.0000 | 3-1/8 | 3.125 | 3.025 | 3.608 | 3.449 | 1-31/32 | 2.013 | 1.925 |
| 2-1/4 | 2.2500 | 3-1/2 | 3.500 | 3.388 | 4.041 | 3.862 | 2-13/64 | 2.251 | 2.155 |
| 2-1/2 | 2.5000 | 3-7/8 | 3.875 | 3.750 | 4.474 | 4.275 | 2-29/64 | 2.505 | 2.401 |
| 2-3/4 | 2.7500 | 4-1/4 | 4.250 | 4.112 | 4.907 | 4.688 | 2-45/64 | 2.759 | 2.647 |
| 3 | 3.0000 | 4-5/8 | 4.625 | 4.475 | 5.340 | 5.102 | 2-61/64 | 3.013 | 2.893 |
| 3-1/4 | 3.2500 | 5 | 5.000 | 4.838 | 5.774 | 5.515 | 3-3/16 | 3.252 | 3.124 |
| 3-1/2 | 3.5000 | 5-3/8 | 5.375 | 5.200 | 6.207 | 5.928 | 3-7/16 | 3.506 | 3.370 |
| 3-3/4 | 3.7500 | 5-3/4 | 5.750 | 5.562 | 6.640 | 6.341 | 3-11/16 | 3.670 | 3.616 |
| 4 | 4.0000 | 6-1/8 | 6.125 | 5.925 | 7.073 | 6.755 | 3-15/16 | 4.014 | 3.862 |
| Nominal Size (Inch) | Basic Diameter (mm) | Full-Size Body Diameter (E) | Width Across Flats (F) | Width Across Corners (G) | Head Height (H) | Fillet Radius (R) | Nominal Thread Length (LT) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Min | Basic (inch) | Max | Min | Max | Min | Basic (inch) | Max | Min | Max | Min | 6 in. & Shorter | 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 | 1.0 |
| 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 | 1.0 | 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 | 1 1/8 | 1.125 | 1.088 | 1.299 | 1.24 | 1/2 | 0.524 | 0.455 | 0.06 | 0.02 | 1.75 | 2.0 |
| 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 | 2.0 | 2.25 |
| 1 | 1.0 | 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 | 3.0 |
| 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 | 3.0 | 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 | 4.0 |
| 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 | 4.0 | 4.25 |
| 2 | 2.0 | 2.039 | 1.964 | 3 | 3.0 | 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 | 5.0 |
| 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 | 6.0 |
| 3 | 3.0 | 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 | 7.0 |
| 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 | 8.0 |
| 4 | 4.0 | 4.111 | 3.975 | 6 | 6.0 | 5.8 | 6.928 | 6.612 | 2 11/16 | 2.764 | 2.424 | 0.19 | 0.06 | 8.25 | 8.5 |
All dimensions are per ASME B18.2.1 Hex Bolt Standards.
| Nominal Size (inch) | Basic Major Diameter of Thread (inch) | Width Across Flats (F) | Width Across Corners (G) | Thickness of Heavy Hex Nuts (H) | Thickness of Heavy Hex Jam Nuts (H1) | Max Runout (FIM) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic | Min | Max | Min | Max | Basic | Min | Max | Basic | Min | Max | Up to 150k psi | 150k psi & greater | All grades | ||
| 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 |
All dimensions are as per ASME B18.2.2 Heavy Hex Nuts and Heavy Hex Jam Nuts standards.
| Bolt Size | A | B | C | Weight (lbs.) Per 100 Pieces |
| ID | OD | Thickness | ||
| 1/2 | 9/16 | 13/8 | 0.109 | 4 |
| 5/8 | 11/16 | 13/4 | 0.134 | 8 |
| 3/4 | 13/16 | 2 | 0.148 | 11 |
| 7/8 | 15/16 | 21/4 | 0.165 | 15 |
| 1 | 11/16 | 21/2 | 0.165 | 19 |
| 11/8 | 11/4 | 23/4 | 0.165 | 22 |
| 11/4 | 13/8 | 3 | 0.165 | 26 |
| 13/8 | 11/2 | 31/4 | 0.180 | 33 |
| 11/2 | 15/8 | 31/2 | 0.180 | 38 |
| 15/8 | 13/4 | 33/4 | 0.180 | 43 |
| 13/4 | 17/8 | 4 | 0.180 | 50 |
| 17/8 | 2 | 41/4 | 0.180 | 57 |
| 2 | 21/8 | 41/2 | 0.180 | 63 |
| 21/4 | 23/8 | 43/4 | 0.220 | 83 |
| 21/2 | 25/8 | 5 | 0.238 | 96 |
| 23/4 | 27/8 | 51/4 | 0.259 | 110 |
| 3 | 31/8 | 51/2 | 0.284 | 130 |
| Class 150 Flanges ASME B16.5 (Stud bolt sizes) | Length of Stud Bolts | |||||||
|---|---|---|---|---|---|---|---|---|
| NPS | Outside Diameter of Flange | The diameter of Bolt Circle | The diameter of Bolt Holes | Number of Bolts | Diameter of Bolts | Raised Face 0.06 in |
Ring Joint | |
| 1/2 | 3 1/2 | 2 3/8 | 5/8 | 4 | 1/2 | 2 1/4 | – | |
| 3/4 | 3 7/8 | 2 3/4 | 5/8 | 4 | 1/2 | 2 1/2 | – | |
| 1 | 4 1/4 | 3 1/8 | 5/8 | 4 | 1/2 | 2 1/2 | 3 | |
| 1 1/4 | 4 5/8 | 3 1/2 | 5/8 | 4 | 1/2 | 2 3/4 | 3 1/4 | |
| 1 1/2 | 5 | 3 7/8 | 5/8 | 4 | 1/2 | 2 3/4 | 3 1/4 | |
| 2 | 6 | 4 3/4 | 3/4 | 4 | 5/8 | 3 1/4 | 3 3/4 | |
| 2 1/2 | 7 | 5 1/2 | 3/4 | 4 | 5/8 | 3 1/2 | 4 | |
| 3 | 7 1/2 | 6 | 3/4 | 4 | 5/8 | 3 1/2 | 4 | |
| 3 1/2 | 8 1/2 | 7 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | |
| 4 | 9 | 7 1/2 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | |
| 5 | 10 | 8 1/2 | 7/8 | 8 | 3/4 | 3 3/4 | 4 1/4 | |
| 6 | 11 | 9 1/2 | 7/8 | 8 | 3/4 | 4 | 4 1/2 | |
| 8 | 13 1/2 | 11 3/4 | 7/8 | 8 | 3/4 | 4 1/4 | 4 3/4 | |
| 10 | 16 | 14 3/4 | 1 | 12 | 7/8 | 4 1/2 | 5 | |
| 12 | 19 | 17 | 1 | 12 | 7/8 | 4 3/4 | 5 1/4 | |
| 14 | 21 | 18 3/4 | 1 1/8 | 12 | 1 | 5 1/4 | 5 3/4 | |
| 16 | 23 1/2 | 21 1/4 | 1 1/8 | 16 | 1 | 5 1/4 | 5 3/4 | |
| 18 | 25 | 22 3/4 | 1 1/4 | 16 | 1 1/8 | 5 3/4 | 6 1/4 | |
| 20 | 27 1/2 | 25 | 1 1/4 | 20 | 1 1/8 | 6 1/4 | 6 3/4 | |
| 24 | 32 | 29 1/2 | 1 1/4 | 20 | 1 1/4 | 6 3/4 | 7 1/4 | |
| Class 300 Flanges ASME B16.5 | Length of Stud Bolts | |||||||
| NPS | Outside Diameter of Flange | The diameter of Bolt Circle | The diameter of Bolt Holes | Number of Bolts | Diameter of Bolts | Raised Face 0.06 in |
Ring Joint | |
| 1/2 | 3 3/4 | 2 5/8 | 5/8 | 4 | 1/2 | 2 1/2 | 3 | |
| 3/4 | 4 5/8 | 3 1/4 | 3/4 | 4 | 5/8 | 3 | 3 1/2 | |
| 1 | 4 7/8 | 3 1/2 | 3/4 | 4 | 5/8 | 3 | 3 1/2 | |
| 1 1/4 | 5 1/4 | 3 7/8 | 3/4 | 4 | 5/8 | 3 1/4 | 3 3/4 | |
| 1 1/2 | 6 1/8 | 4 1/2 | 7/8 | 4 | 3/4 | 3 1/2 | 4 | |
| 2 | 6 1/2 | 5 | 3/4 | 8 | 5/8 | 3 1/2 | 4 | |
| 2 1/2 | 7 1/2 | 5 7/8 | 7/8 | 8 | 3/4 | 4 | 4 1/2 | |
| 3 | 8 1/4 | 6 5/8 | 7/8 | 8 | 3/4 | 4 1/4 | 4 3/4 | |
| 3 1/2 | 9 | 7 1/4 | 7/8 | 8 | 3/4 | 4 1/4 | 5 | |
| 4 | 10 | 7 7/8 | 7/8 | 8 | 3/4 | 4 1/2 | 5 | |
| 5 | 11 | 9 1/4 | 7/8 | 8 | 3/4 | 4 3/4 | 5 1/4 | |
| 6 | 12 1/2 | 10 5/8 | 7/8 | 12 | 3/4 | 4 3/4 | 5 1/2 | |
| 8 | 15 | 13 | 1 | 12 | 7/8 | 5 1/2 | 6 | |
| 10 | 17 1/2 | 15 1/4 | 1 1/8 | 16 | 1 | 6 1/4 | 6 3/4 | |
| 12 | 20 1/2 | 17 3/4 | 1 1/4 | 16 | 1 1/8 | 6 3/4 | 7 1/4 | |
| 14 | 23 | 20 1/4 | 1 1/4 | 20 | 1 1/8 | 7 | 7 1/2 | |
| 16 | 25 1/2 | 22 1/2 | 1 3/8 | 20 | 1 1/4 | 7 1/2 | 8 | |
| 18 | 28 | 24 3/4 | 1 3/8 | 24 | 1 1/4 | 7 3/4 | 8 1/4 | |
| 20 | 30 1/2 | 27 | 1 3/8 | 24 | 1 1/4 | 8 | 8 3/4 | |
| 24 | 36 | 32 | 1 5/8 | 24 | 1 1/2 | 9 | 10 | |
| Screw Diameter | Typical Metric Sizes | Available Head Styles |
|---|---|---|
| Small | M3–M5 | Pan / Flat / Button |
| Medium | M6–M10 | Hex / Socket / Pan / Flat |
| Large | M12–M16 | Socket / Hex / Customized |
| Heavy | M18 and above | Customized / Industrial |
| Hexagon Bolt / Set Screws | Stud Bolt | Hexagon Nuts | Socket Cap screws |
|---|---|---|---|
| DIN 931 | BS4882 | DIN 934 | DIN 912 |
| DIN 933 | DIN 976 | BS 1768 | DIN 6912 |
| BS 1768 | BS 1769 | DIN 7984 | |
| UNI 5731 | BS 1083 | ANSI B18.3 | |
| UNI 5739 | BS 3692 | ISO 4762 | |
| ISO 4014 | ISO 4032 | UNI 5931 | |
| ISO 4017 | ISO 4033 | BS 2470 | |
| BS 1769 | ANSI B18.2.2 | BS 4168 | |
| BS 3692 | |||
| ANSI B18.2.1 | |||
| Socket & Slotted Set Screws | Socket & Slotted Countersunk Screws | Studs | Washers |
| DIN 913 | DIN 963 | DIN 938 | DIN 125 |
| DIN 914 | DIN 7991 | DIN 939 | DIN 9021 |
| DIN 915 | BS 4168 | DIN 2510 | BS 4320 |
| DIN 916 | BS 1981 | BS 4439 | BS 3410 |
| DIN 551 | BS 483 | BS 2693 | |
| DIN 553 | BS 2470 | Spring Washers | |
| DIN 438 | DIN 127 | ||
| BS 4168 | BS 4464 | ||
| BS 1802 |