Head type：bugle head,double bugle,pan head,scavenger head,wafer head ,flat head,and so on.

Recess type:pozi,square,phillips,trox

Thread type： fine/coarse thread

Nibs on CSK：3nibs，6 nibs，4nibs，no nib

Finish: zinc plated,dacromet，phosphated black，phosphated grey

Self-tapping screws or quick-thread screws are quick-fit fasteners made of steel and passivated by galvanizing the surface. Self-tapping screws are mostly used for the connection between thin metal plates (steel plates, saw plates, etc.). 

Fastener manufacturers gather in many provinces in China. Our company is registered in Shanghai and the factory is located in Zhejiang. It is the source of the highest quality Chinese screws. We pursue better quality and better partners. As long as you need, we can design and produce the best quality screws.

If the display is not the type you want, please contact me, we have more than 2000 kinds, please feel free to quote for you