standard size stud bolt Description Standard:ANSI,ASTM,JIS,DINGrade:Class 4 ... / 10.9 / 12.9 & Grade 2, 5 ,8Diameter:M6-M48 1/4''-2''Length:6mm-300mm 3/8''-12 ... Co., Ltd, located in Shanghai, always keeping pace with the ever-changing the market demand. Our main markets ... including Europe, America, South America,Canada, Australia, Middle East ,Southeast Asia, etc.Our main products including bolts, ...