Wafer Head Self Drilling Screw

Product Introduction: 

The washer-head self-drilling screw is a new type of high-efficiency riveting fastener. 

The self-drilling screw has a drill-shaped or pointed end for riveting. 

When riveting connected parts with a washer-head screw, no auxiliary processing is required on the surface or inside of the connected parts. 

The washer-head screw can directly drill, tap, and tighten in one quick and easy operation.

Product Features: 

Its key function is to increase the contact area, disperse the pressure, and prevent crushing of soft materials. 

The torsion spring of the spring washer essentially applies a force to the nut after tightening, increasing the sliding friction between the nut and the bolt!