Weld Nut
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WhatsApp us Get a Quote +91 90333 11425 Download catalogue (PDF)JMIKS Fasteners supplies weld nuts in SS 304, SS 316 and SS 202, and in mild steel and high tensile grades, from M3 to M36 and ¼” to 1-1/4″ BSW. A weld nut is welded onto sheet metal to give a strong, permanent thread.
Standard : DIN / IS / AISI
Size : Metric : M3 To M36 / BSW : ¼” to 1-1/4”
Material Grade: SS304 | SS316 | SS202 | 4.6 |8.8 | 10.9 | 12.9
Finish : Zinc Plated , HDG , Self finish
Weld nuts have small projections that melt into the sheet during projection or spot welding. The nut then stays fixed, and a bolt can be fitted from the other side without holding the nut. Common types are hexagon weld nuts (DIN 929) and square weld nuts (DIN 928).
Key dimensions of hexagon weld nuts to DIN 929 and square weld nuts to DIN 928 in common sizes, in mm.
| Size | Across flats DIN 929 | Height DIN 929 | Across flats DIN 928 | Height DIN 928 |
|---|---|---|---|---|
| M6 | 11 | 5.0 | 10 | 5.0 |
| M8 | 14 | 6.5 | 14 | 6.5 |
| M10 | 17 | 8.0 | 17 | 8.0 |
| M12 | 19 | 10.0 | 19 | 9.5 |
| M16 | 24 | 13.0 | 24 | 13.0 |
Typical dimensions as per DIN 929 and DIN 928; refer to the standard for tolerances.
Hex weld nuts (DIN 929) have three weld projections and suit most sheet metal work. Square weld nuts (DIN 928) have four projections and are easy to place on flat sheet.
Choose the same material as the sheet: steel weld nuts for mild steel sheet, and SS 304 or SS 316 weld nuts for stainless steel sheet. Plain (self colour) nuts weld most cleanly, because coatings such as zinc burn off at the weld.
The hole in the sheet matches the pilot collar on the nut: 8 mm for M6, 10.5 mm for M8, 12.5 mm for M10, 14.8 mm for M12 and 18.8 mm for M16. The collar locates the nut in the hole before welding.
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