standard size stud bolt Description Standard:ANSI,ASTM,JIS,DINGrade:Class 4.8 / 5.8 / 6. ... DIN, ANSI, AS, BS, JIS, GB, ISO and other standard&non-standard specifications base on our customers’ special request and drawings.We ... value of our fasteners."Whenever you need fasteners, contact us ” standard size stud bolt