... , L=9.5mm-90mm Carbon Steel Copper Plating Cross Recessed Pan Head Tapping Screws for plastics 1)Material:Iron,stainless steel,copper ... , dacromat and etc...5)Head type: pan head,oval head,H.W.H head,H.WF head,C.S.K head ,truss head.6)Head recess: philips, slotted, combi ...