We recently manufactured for a client in Portugal some 1 Bsw x 5 5/8 A4-80 Hex Bolts.
A4-80 Stainless grade is common with metric bolts but not on imperial bolting. Our sister company Smith Bullough, were able to manufacture these in imperial BSW threadform without any issues.
These bolts were also supplied with raw material certification and a 3.1 cert.
Another satisfied customer!