C1022、10B21 Carbon Steel Screw、302、304、305、316, Stainless Steel Screw
1.Patented Spiral head design. The head can be perfectly flush with the surface without any burr.
2.Patented high-holding thread design. It enhances the stability and safety after drilling the application.Reduces the fatigue of the installers and increases the working efficiency by 60%. It can also reduce the battery loss of the power driver.