self-clinching brass screw Standard:PEM Material:brass, stainless steel, steel,etc ... flash, customized requirement4.Type: FH, FHS, CHC, CFHC5.Screw slot form:philips, phil-slot,pozi, hexsocket, six-lobe, square, triangle, slotted6.High ... industry, architecture industry, gym equipment etcScrew sort: Machine screw, chipboard screw, furniture wiring screw etcOther sort: Supply all kinds of nuts, screws, ...