Cylindrical head welding nail
Welding nails belong to fasteners with high strength and rigidity. Welding nails are short for cylindrical head welding nails for arc stud welding. The welding nails are of nominal diameter Ф 10 ~ Ф 25 mm and total length before welding is 40 ~ 300 mm. Solder studs have a manufacturer’s identification mark made of convex characters on the top surface of the head. Solder studs are widely used.