... Standard: DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380,etc. Titanium Fastener DIN931,Titanium Bolts,Titanium Nuts,Titanium Washer.1. Material ... 92. Produce Standard: DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380,etc.3.Inspection:For precision measuring we would recommend ...