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Weld Nuts
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Add permanent threads to thin metal with our go-to weld nuts. Unlike press-fit and rivet nuts, these nuts fuse to the base metal, so they won’t twist and pull out. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter. You can also install them on thick pieces of metal.
Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
18-8 Stainless Steel—Suitable for outdoor use, these nuts resist rust from water and mild chemicals. Weld them to stainless steel surfaces.
Grade 2 Titanium—The best choice when you need a high strength-to-weight ratio, these nuts are 40% lighter than steel nuts. They’re also our most corrosion-resistant weld nuts, standing up to salt water, strong acids, and other harsh chemicals. Weld them to titanium surfaces.
Collar | ||||||||||||
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Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Specs. Met | Certificate Type | Pkg. Qty. | Pkg. | |||
Steel | ||||||||||||
| 8-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | — | 10 | 93560A190 | 00000 | ||
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | — | 25 | 93560A210 | 00000 | ||
| 10-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | Material Certificate | 25 | 93560A220 | 00000 | ||
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | Material Certificate | 50 | 93560A140 | 00000 | ||
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.085" | 27/64" | ASME B1.1 | — | 25 | 93560A116 | 00000 | ||
| 1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | — | 25 | 93560A230 | 00000 | ||
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.04" | 31/64" | ASME B1.1 | Material Certificate | 50 | 93560A150 | 00000 | ||
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | ASME B1.1 | — | 25 | 93560A113 | 00000 | ||
| 5/16"-24 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | ASME B1.1 | — | 25 | 93560A240 | 00000 | ||
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.05" | 35/64" | ASME B1.1 | Material Certificate | 50 | 93560A160 | 00000 | ||
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.085" | 35/64" | ASME B1.1 | — | 25 | 93560A112 | 00000 | ||
| 3/8"-24 | 5/8" | 1/4" | 17/32" | 0.05" | 35/64" | ASME B1.1 | Material Certificate | 25 | 93560A250 | 00000 | ||
| 7/16"-14 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | — | 25 | 93560A260 | 00000 | ||
| 7/16"-14 | 3/4" | 21/64" | 21/32" | 0.085" | 43/64" | ASME B1.1 | — | 10 | 93560A114 | 00000 | ||
| 7/16"-20 | 3/4" | 21/64" | 21/32" | 0.05" | 43/64" | ASME B1.1 | — | 25 | 93560A270 | 00000 | ||
| 7/16"-20 | 3/4" | 21/64" | 21/32" | 0.085" | 43/64" | ASME B1.1 | — | 10 | 93560A115 | 00000 | ||
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.06" | 47/64" | ASME B1.1 | Material Certificate | 25 | 93560A180 | 00000 | ||
| 5/8"-11 | 15/16" | 29/64" | 25/32" | 0.06" | 51/64" | ASME B1.1 | Material Certificate | 10 | 93560A280 | 00000 | ||
| 5/8"-11 | 15/16" | 29/64" | 25/32" | 0.085" | 51/64" | ASME B1.1 | — | 10 | 93560A111 | 00000 | ||
| 3/4"-10 | 1 15/64" | 5/8" | 31/32" | 0.06" | 63/64" | ASME B1.1 | Material Certificate | 5 | 93560A290 | 00000 | ||
| M3 × 0.5 mm | 7.5 mm | 2.45 mm | 4.5 mm | 0.55 mm | 4.5 mm | DIN 929 | — | 100 | 93337A400 | 00000 | ||
| M4 × 0.7 mm | 9 mm | 2.85 mm | 6 mm | 0.65 mm | 6 mm | DIN 929 | — | 100 | 93337A500 | 00000 | ||
| M5 × 0.8 mm | 10 mm | 3.3 mm | 7 mm | 0.7 mm | 7 mm | DIN 929 | — | 100 | 93337A600 | 00000 | ||
| M6 × 1 mm | 11 mm | 4.25 mm | 8 mm | 0.75 mm | 8 mm | DIN 929 | Material Certificate | 50 | 93337A110 | 0000 | ||
| M8 × 1.25 mm | 14 mm | 5.6 mm | 10.5 mm | 0.9 mm | 10.5 mm | DIN 929 | Material Certificate | 50 | 93337A210 | 00000 | ||
| M10 × 1.25 mm | 17 mm | 6.85 mm | 12.5 mm | 1.15 mm | 12.5 mm | DIN 929 | — | 25 | 93337A111 | 00000 | ||
| M10 × 1.5 mm | 17 mm | 6.85 mm | 12.5 mm | 1.15 mm | 12.5 mm | DIN 929 | Material Certificate | 25 | 93337A310 | 00000 | ||
| M12 × 1.75 mm | 19 mm | 8.6 mm | 14.8 mm | 1.4 mm | 14.8 mm | DIN 929 | — | 25 | 93337A700 | 00000 | ||
| M14 × 2 mm | 22 mm | 9.2 mm | 16.8 mm | 1.8 mm | 16.8 mm | DIN 929 | — | 10 | 93337A800 | 00000 | ||
| M16 × 2 mm | 24 mm | 11.2 mm | 18.8 mm | 1.8 mm | 18.8 mm | DIN 929 | Material Certificate | 10 | 93337A900 | 00000 | ||
18-8 Stainless Steel | ||||||||||||
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.047" | 27/64" | ASME B1.1 | Material Certificate | 10 | 95508A100 | 00000 | ||
| 1/4"-28 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | ASME B1.1 | — | 10 | 95508A400 | 00000 | ||
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.047" | 31/64" | ASME B1.1 | Material Certificate | 5 | 95508A200 | 0000 | ||
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.047" | 35/64" | ASME B1.1 | Material Certificate | 5 | 95508A300 | 0000 | ||
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.06" | 47/64" | ASME B1.1 | Material Certificate | 5 | 95508A500 | 00000 | ||
| M3 × 0.5 mm | 7.5 mm | 2.5 mm | 4.5 mm | 0.55 mm | 4.5 mm | DIN 929 | — | 100 | 93418A200 | 00000 | ||
| M4 × 0.7 mm | 9 mm | 2.9 mm | 6 mm | 0.65 mm | 6 mm | DIN 929 | — | 50 | 93418A300 | 0000 | ||
| M5 × 0.8 mm | 10 mm | 3.3 mm | 7 mm | 0.7 mm | 7 mm | DIN 929 | Material Certificate | 50 | 93418A400 | 00000 | ||
| M6 × 1 mm | 11 mm | 4.3 mm | 8 mm | 0.75 mm | 8 mm | DIN 929 | Material Certificate | 25 | 93418A500 | 0000 | ||
| M8 × 1.25 mm | 14 mm | 5.6 mm | 10.5 mm | 0.9 mm | 10.5 mm | DIN 929 | Material Certificate | 25 | 93418A600 | 00000 | ||
| M10 × 1.5 mm | 17 mm | 6.9 mm | 12.5 mm | 1.15 mm | 12.5 mm | DIN 929 | Material Certificate | 10 | 93418A700 | 0000 | ||
| M12 × 1.75 mm | 19 mm | 8.6 mm | 14.8 mm | 1.4 mm | 14.8 mm | DIN 929 | — | 10 | 93418A800 | 00000 | ||
| M16 × 2 mm | 24 mm | 11.2 mm | 18.8 mm | 1.8 mm | 18.8 mm | DIN 929 | Material Certificate | 1 | 93418A900 | 00000 | ||
Grade 2 Titanium | ||||||||||||
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 13/32" | ASME B1.1 | — | 1 | 93382A110 | 00000 | ||
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.047" | 13/32" | ASME B1.1 | — | 1 | 93382A120 | 00000 | ||
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.047" | 15/32" | ASME B1.1 | — | 1 | 93382A130 | 00000 | ||
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.047" | 17/32" | ASME B1.1 | — | 1 | 93382A140 | 00000 | ||
| 1/2"-13 | 13/16" | 3/8" | 23/32" | 0.063" | 23/32" | ASME B1.1 | — | 1 | 93382A150 | 00000 | ||
| M6 × 1 mm | 11 mm | 4.3 mm | 8 mm | 0.75 mm | 8 mm | DIN 929 | — | 1 | 93382A160 | 00000 | ||
| M8 × 1.25 mm | 14 mm | 5.6 mm | 10.5 mm | 0.9 mm | 10.5 mm | DIN 929 | — | 1 | 93382A170 | 00000 | ||
| M10 × 1.5 mm | 17 mm | 6.9 mm | 12.5 mm | 1.15 mm | 12.5 mm | DIN 929 | — | 1 | 93382A180 | 00000 | ||
Weld Locknuts
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Prevent screws from backing out under heavy vibration. These nuts have distorted threads that grip screws tightly. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. These nuts also have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter.
Use Grade 2 or Class 6 screws to avoid stripping threads during installation. Distorted threads require high torque for fastening and unfastening, so you may need an impact wrench to remove screws.
Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.
Collar | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Ht. | For Hole Dia. | Pkg. Qty. | Pkg. | |||
Steel | ||||||||||
| 10-24 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | 10 | 90744A150 | 00000 | ||
| 10-32 | 1/2" | 3/16" | 13/32" | 0.04" | 27/64" | 10 | 90744A140 | 0000 | ||
| 1/4"-20 | 15/32" | 11/64" | 13/32" | 0.04" | 27/64" | 100 | 90744A240 | 00000 | ||
| 1/4"-20 | 1/2" | 3/16" | 13/32" | 0.085" | 27/64" | 25 | 90744A210 | 0000 | ||
| 5/16"-18 | 35/64" | 13/64" | 15/32" | 0.04" | 31/64" | 100 | 90744A250 | 00000 | ||
| 5/16"-18 | 9/16" | 7/32" | 15/32" | 0.085" | 31/64" | 10 | 90744A350 | 0000 | ||
| 3/8"-16 | 39/64" | 15/64" | 17/32" | 0.05" | 35/64" | 50 | 90744A260 | 00000 | ||
| 3/8"-16 | 5/8" | 1/4" | 17/32" | 0.085" | 35/64" | 10 | 90744A170 | 0000 | ||
| 1/2"-13 | 25/32" | 23/64" | 23/32" | 0.06" | 47/64" | 50 | 90744A270 | 00000 | ||
| 1/2"-13 | 25/32" | 23/64" | 23/32" | 0.085" | 47/64" | 50 | 90744A280 | 00000 | ||
| 5/8"-11 | 59/64" | 27/64" | 25/32" | 0.085" | 51/64" | 25 | 90744A290 | 00000 | ||
| 5/8"-11 | 15/16" | 7/16" | 25/32" | 0.085" | 51/64" | 5 | 90744A230 | 0000 | ||
| M5 × 0.8 mm | 11 mm | 5.5 mm | 7.6 mm | 0.9 mm | 7.6 mm | 10 | 90744A360 | 0000 | ||
| M6 × 1 mm | 12.7 mm | 5.1 mm | 8.8 mm | 1 mm | 8.8 mm | 100 | 90744A310 | 00000 | ||
| M6 × 1 mm | 13 mm | 5.5 mm | 9.1 mm | 1.6 mm | 9.1 mm | 25 | 90744A220 | 0000 | ||
| M8 × 1.25 mm | 14.7 mm | 6.6 mm | 10.9 mm | 1 mm | 10.9 mm | 50 | 90744A320 | 00000 | ||
| M8 × 1.25 mm | 15 mm | 7 mm | 11.1 mm | 1.8 mm | 11.1 mm | 10 | 90744A180 | 0000 | ||
| M10 × 1.5 mm | 17.7 mm | 7.7 mm | 13.4 mm | 1.16 mm | 13.4 mm | 50 | 90744A330 | 00000 | ||
| M10 × 1.5 mm | 18 mm | 8 mm | 13.6 mm | 1.8 mm | 13.6 mm | 10 | 90744A190 | 0000 | ||
| M12 × 1.75 mm | 20.6 mm | 9.4 mm | 15.9 mm | 1.26 mm | 15.9 mm | 50 | 90744A340 | 00000 | ||
| M12 × 1.75 mm | 21 mm | 9.7 mm | 16.1 mm | 1.8 mm | 16.1 mm | 10 | 90744A160 | 0000 | ||
| M16 × 2 mm | 26 mm | 13 mm | 20.6 mm | 1.3 mm | 20.6 mm | 5 | 90744A130 | 0000 | ||
