DIN 976-1 (form A) with metric ISO standard thread, stainless steel A4
NoticeStud bolts made from stainless austenitic steel with strength class A4-70 and nominal thread diameter d ≥ 5 mm, to be identified on one face as steel grade A4. As an alternative to the specified designation, stud bolts can be made identifiable on one end with the colour flame red (RAL 3000).
