Weld-on square nuts give a threaded fixing on fabricated steel — brackets, tube frames, base plates — where a tapped hole would be too thin or a loose nut inaccessible. We stock them in Umm Al Quwain from M10 to M24 in plain low-carbon steel for both projection and arc welding.
This square weld nut is the heavier fabrication version of the DIN 928 sheet-metal nut: thicker, with a plain or pilot face, suited to MIG / TIG or projection welding onto plate 3 mm and up, angles and hollow sections. Once welded, the nut becomes a permanent threaded boss for bolts, studs or levelling screws. Supplied unplated so the weld is clean; the fabrication is galvanized or painted afterwards.
Applications
- Column base plates and steel frames
- Tube and hollow-section furniture and racks
- Equipment brackets and mounting plates
- Trailer chassis and vehicle frames
- Cable ladder and support fabrications
- Levelling feet and adjuster bosses
Standards, grades & finishes
Nuts to ISO / DIN square weld nut dimensions (DIN 928 pattern, heavy series), low-carbon steel class 6 / 8, threads ISO 965 6H. Plain (unplated) finish for welding; stainless A2 / A4 weld nuts for stainless fabrications. Sizes M10 to M24; hex weld nuts DIN 929 also stocked.
This item is imported from approved mills and held in stock in our Umm Al Quwain warehouse alongside the anchor bolts, studs and plate washers we manufacture ourselves, so complete bolt sets ship from one source. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.