... 1.NameHex Head NUT DIN 934 2.standardDIN, ASME,JIS,BS,FR and GB,Nonstandard bolt(according to your order),etc3 ... Steel,Alloy steel,stainless steel and brass4.Grade4.6.8.10 etc5.FinishBlack,Zinc plated,Copper plating,Phosphating,Mechanical galvanized,hot ... of TransportationThe Best Choice for You GRADE-4.6.8.10 Hex Head NUT DIN 934