Round headed non-standard spot welding screw

What is spot welding screw?

Spot welding screws, also known as energy storage welding screws, are non-standard screws composed of light energy and screw heads or headless screws, which are fixed to a part by welding. Used for connecting with other components.

Spot welding screws are generally made of stainless steel and carbon steel. Mainly used in the fields of automobiles, electronic appliances, mechanical equipment, etc