Industrial Fastener · Nuts Series
Weld Nut
Weld nuts are designed to be welded (typically by resistance projection welding) onto sheet metal, providing a permanent threaded location for assembly. Standard forms include hex weld nuts, square weld nuts, slab base (long base) weld nuts, and tab/projection weld nuts.
Product Overview
Weld Nut sourcing essentials
Weld nuts are designed to be welded (typically by resistance projection welding) onto sheet metal, providing a permanent threaded location for assembly. Standard forms include hex weld nuts, square weld nuts, slab base (long base) weld nuts, and tab/projection weld nuts.
Project or drawing specification
Low-carbon steel (weld-grade)
Weld nuts are designed to be welded (typically by resistance projection welding) onto sheet metal, providing a permanent threaded location for...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Forms | Hex, Square, Slab base, Tab, Three-projection, Round projection |
|---|---|
| Size Range | M4 – M12 |
| Material | Low-carbon steel (weld-grade) |
| Surface Finish | Plain (no coating in weld zone), can be coated post-weld |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
Why are weld nuts plain (uncoated) in the weld area?
Plating, oil, or any coating in the weld area would interfere with electrical contact during projection welding and produce poor weld quality. Weld nuts are typically supplied uncoated. Coating, if needed, is applied after the weld is made.
Ready to quote Weld Nut?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.