... Team 4, Own Development Department 5, OEM 1. What is the Hex Cap Screws?ASME standard B18.2.1 -1996 ... storehouse. We have always uphold the responsibility is the guarantee of quality, quality is the life of brand.Product Description Standard Thread Diameter Screw Length ... Black Oxide, MG, HDG Full Thread, Partial Thread Packing: 20~25kg/ctn, 36ctns/plt. The carton is regular export corrugated carton, ...