Roll-fast manufactures bigger diameter bolts & nuts in stainless steel grades in A4-70, A4-80, B8, B8M Class 1 and class 2, SS316S31, A4-70L and A4-80L as per ISO 3506-1. The Stainless steel hex bolts & nuts are made from a steel alloy that contains a minimum of 10.5% Chromium and is also referred to as Inbox steel. We are the pioneers in manufacturing stainless steel bolts & nuts for the petrochemical industries.
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