Square Weld Nuts (DIN 928)

FULLERKREG DIN 928 square weld nuts are manufactured to the Deutsches Institut für Normung standard across five material and strength grades. Designed for resistance (projection) welding onto sheet metal panels, each nut features four precision weld projections that concentrate heat during welding for consistent, high-strength weld joints. The square body provides excellent anti-rotation resistance in the parent material. Available in stainless steel A2 and A4 for corrosion-resistant applications, and in low carbon or 10B21 boron alloy steel for high-volume industrial and structural welding. Metric sizes M3 through M12.

DIN 928 Product Series

Square Weld Nuts (DIN 928) – Stainless Steel A2 (SUS304)
材质 SUS304 (A2) · 表面 洗白钝化 · M3–M12 · 耐大气腐蚀，食品/电气/HVAC首选

Square Weld Nuts (DIN 928) – Marine Stainless Steel A4 (SUS316)
材质 SUS316 (A4) · 表面 洗白钝化 · M3–M12 · 含钼元素，抗氯化物腐蚀，海洋/化工/食品药品首选

Square Weld Nuts (DIN 928) – Low Carbon Steel, ISO Class 4, Bare
材质 Q195低碳钢 · 表面 本色 · M3–M12 · 焊后喷涂/电泳，汽车BIW/家电/钢制家具标准选型

Square Weld Nuts (DIN 928) – 10B21 Alloy Steel, ISO Class 8, Bare
材质 10B21硼合金钢 · 表面 本色 · M3–M12 · Proof Load 800 MPa，高强度结构焊接首选

Square Weld Nuts (DIN 928) – 10B21 Alloy Steel, ISO Class 10, Bare
材质 10B21硼合金钢 · 表面 本色 · M3–M12 · Proof Load 1000 MPa，系列最高强度，重型设备/安全关键接头

Selection Guide

Grade / Material	Surface	Proof Load	Size Range	Best For
A2 / SUS304	Pickled & Passivated	A2-50	M3 – M12	General industry, food equipment, HVAC, electronics
A4 / SUS316	Pickled & Passivated	A4-50	M3 – M12	Marine, offshore, chemical, coastal outdoor, pharma
Class 4 / Q195	Bare (Plain)	310 MPa	M3 – M12	Automotive BIW, appliances, furniture (post-weld coated)
Class 8 / 10B21	Bare (Plain)	800 MPa	M3 – M12	Structural fabrication, heavy equipment, commercial vehicles
Class 10 / 10B21	Bare (Plain)	1000 MPa	M3 – M12	Safety-critical joints, cranes, mining, off-highway equipment

Standard Reference

DIN 928 specifies square weld nuts with metric threads and four weld projections for resistance (projection) welding, issued by the Deutsches Institut für Normung (DIN). The standard defines body dimensions, projection geometry, and thread tolerances. DIN 928 weld nuts are widely used across European and global manufacturing industries in automotive, appliance, HVAC, marine, and structural applications. FULLERKREG manufactures all DIN 928 variants in strict conformance with dimensional tolerances across the full material and strength range.

Product Gallery

DIN 928 Square Weld Nuts – actual product photos

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Why Choose FULLERKREG?

🏭 Direct Manufacturer – Factory-direct pricing with full dimensional traceability
📐 DIN Precision – All variants manufactured to strict DIN 928 tolerances, projection geometry QC verified
⚡ Full Grade Range – A2, A4 stainless steel and class 4 / 8 / 10 carbon & alloy steel in one source
💪 Up to Class 10 – 1000 MPa proof load available in standard DIN 928 geometry
✅ RoHS Compliant – All surface treatments meet EU RoHS / ELV / REACH directives
📦 Bulk Wholesale Ready – MOQ flexible, available in bags, boxes, or bulk cartons
🌍 Global Shipping – Reliable export logistics to Europe, North America, Southeast Asia
💬 Technical Support – Engineering team available for welding parameters and grade selection queries