Din Description Threadform Pointtype material finish Catalogue Section
rivets 73STS DOME HEAD BLIND RIVET
STAINLESS STEEL SHELL WITH STEEL STEM
        2-1
steel rivets 73MS DOME HEAD BLIND RIVET
MONEL SHELL WITH STEEL STEM
        2-2
stainless steel rivets 73STST DOME HEAD BLIND RIVET
STAINLESS STEEL SHELL WITH STAINLESS STEEL STEM
        2-3

A2 and A4 metric fasteners vs 18/8 metric fasteners and 316ss marine fittings

Different threadforms are used in various parts of the world. The most popular are A2 metric fasteners and A4 metric fasteners, but the USA predominantly uses 18/8 metric fasteners and 316ss for marine fittings and unified stainless steel fasteners, such as UNC, BA, and UNF.