DIN 912 HEX SOCKET CAP BOLT 1.Surface: z.p, black, ... 3.Grade: 4.8,8.8,10.9.12.9 DIN 912 HEX SOCKET CAP BOLT 1) Various kinds of bolts ... , black4) Can be made with different standards, such as ISO, DIN, AS/NZS, GB, ANSI, BS and special standard according to ...