... Hex flange head,Round head,Ball head,Button head...Socket typesPhillip type,Pozi type,Eleven type,hexagonal type,Torx ... more than 20 years experiences in screw,bolt,nut,washer,rivet, stud, pin,wrench and so on .2. Our ... thicker ,it is strong not break down . meanwhile,socket is much deeper,it is convenient to tighten by screwdriver ... me if you have any query ! Torx Socket Pan Head Self Tapping Screw