... steel,stainless steel and brass4.Grade4.6.8.10 etc5.FinishBlack,Zinc plated,Copper plating,Phosphating,Mechanical ... T nuts, K nuts, rivet nuts, cage nuts, lock nuts, hex nuts, hex flange nuts, wing nuts, weld ... flat washers, spring washers, lock washers, structural Washers. square washer, bowl washer.Screws: machine screws, self tapping screws, self ... Choice for You GRADE-4.6.8.10 Hex Head NUT DIN 934