Industrial-Grade M3-M16 Weld Nuts: Permanent Threading Solutions
Our M3-M16 Weld Nuts are engineered to provide high-strength, permanent internal threads in thin-walled metal components. Designed specifically for projection welding, these fasteners eliminate the need for tapping or clinching, making them an essential choice for automotive frames, industrial appliances, and heavy-duty sheet metal assemblies.
As a leading weld nut factory, we ensure every nut is manufactured to strict DIN 928 (Square) and DIN 929 (Hexagonal) standards. Our products offer exceptional fusion quality, ensuring that the nut becomes an integral part of the workpiece, resistant to high levels of vibration and torque.
- Superior Weldability: Crafted from low-carbon steel or 304 stainless steel, optimized for various welding processes including Resistance Welding.
- Precision Projections: Features three or four precision-engineered welding points (projections) to ensure uniform fusion and prevent “spinning” after installation.
- Wide Size Range: From micro-assembly M3 and M4 weld nuts to heavy-duty M12 and M16 industrial fasteners.
- Corrosion Resistance: Available in self-color (for immediate welding) or specialized copper-plated finishes to prevent weld spatter on threads.
| Thread Size | Width Across Flats (s) | Total Height (m) | Projections |
|---|---|---|---|
| M5 | 9.0 mm (Square) | 4.0 mm | 3 or 4 Points |
| M6 | 11.0 mm (Hex) | 5.0 mm | 3 Points |
| M8 | 14.0 mm (Hex) | 6.5 mm | 3 Points |
| M10 | 17.0 mm (Hex) | 8.0 mm | 3 Points |
| M12 | 19.0 mm (Hex) | 10.0 mm | 3 Points |
Our DIN 929 Hex Weld Nuts and Square Weld Nuts are foundational in several high-tech sectors:
- Automotive: Used in chassis assembly, seat mounts, and engine compartment brackets for high vibration resistance.
- Electronics & Enclosures: Ideal for securing internal components in thin metal server racks and control panels.
- Agricultural Equipment: Provides robust fastening in heavy-duty machinery subjected to extreme environmental stress.
To ensure maximum torque-out strength, follow these welding best practices:
- Clean Surfaces: Ensure the base metal and the weld nut are free from oil, rust, or heavy coatings to facilitate perfect fusion.
- Alignment: Use a ceramic or non-conductive pilot pin to align the M8 or M10 weld nut with the pre-punched hole.
- Weld Pressure: Calibrate your projection welder to apply uniform pressure across all welding points simultaneously.
Q: What is the difference between DIN 928 and DIN 929?
A: DIN 928 refers to Square Weld Nuts, which offer a larger surface area for welding. DIN 929 refers to Hexagon Weld Nuts, which are more common for tight-space applications.
Q: Do you offer M12 weld nuts in Stainless Steel 316?
A: Yes, we provide SS316 weld nuts specifically for marine and chemical processing environments where maximum corrosion resistance is required.
Partner with a Professional Weld Nut Supplier
Seeking bulk M4-M16 weld nuts at factory-direct pricing? We provide ISO 9001 certified quality and global shipping. Contact us today for a free quote and technical samples.
