... steel wire - cold heading wire 1)302HQ, 304HC, 304HCM, 316C 2)use to produce the screws,bolts and nuts etc. Specifications:1) Steel ... automotive. Dia mmMaterialExecution surfaceTemperApplicatione.g1.00-7.00304,316,201CU,430LXJ1,410 .etcEPQ wire-Eletro Polishing Quanlity bright/dullsoft,1 ... screws,bolts and nuts ,rivet,nail.stable,pins1.0-7.0302,304,321,631J1,347Spring wirebright/dullharduse for rolling ...