standard size stud bolt Description Standard:ANSI,ASTM,JIS,DINGrade:Class 4.8 ... 3/8''-12''Material:Carbon steel, Stainless steel ,Copper, Alloy SteelSurface:Plain, zinc plated,HDG, phosphate,Zinc Flake Coating( ... and special fasteners made of low and medium carbon steel, alloy & stainless steel, aluminum, brass or other special materials. ... you need fasteners, contact us ” standard size stud bolt