... .MaterialCarbon Steel,Alloy steel,stainless steel and brass4.Grade4.6.8.10 etc5.FinishBlack,Zinc plated,Copper plating,Phosphating,Mechanical galvanized,hot ... washers, lock washers, structural Washers. square washer, bowl washer.Screws: machine screws, self tapping screws, self drilling screws, set screws, hex ... PackageMode of TransportationThe Best Choice for You GRADE-4.6.8.10 Hex Head NUT DIN 934