socket SCREW 1.Screw Material:SS304,SS316, ROHS 2.Screw Finish:plain, phosphate 3.Screw style:SEMS SCREW 4. ISO9001:ISO14 Features:Stainless steel wing screws with plastic head A. Screw Prosduct detail 1)MaterialCarbon Steel of grade, SUS201, SUS303, SUS302, SUS304,SUS316 and etc. 2)Finishplain finish, black oxide,zinc plated(white zinc, black zinc, colour zinc, blue zinc), chromated,nickel ...