... so on stainless steel hexagonal barWidely used:Produce screw and nut, engine parts, indoor and outdoor decorating,ect.Specification:1 ... customer's requirement4.Standard: AISI,JIS,GB, ISO,DIN5.Finish: Cold Drawn & Polishing6.Testing: Each heat number and batch must ... for both chemical and mechanical properties7.Application: Produce screw and nut, engine parts, indoor and outdoor decorating,ect. Size(mm ...