System:
Metric size: M12 to M36
Finish: self-color, ZP, YZP and HDG
Standards: GB1 228, 1229, 1230 DIN 6914, 6915 and 6916
System:
Inch size: 1/2 to 1-1/2 inches
Finish: self-color, ZP, YZP and HDG
Standards: ASTM A325-1, A490-1, A325m-1, A490m-1, AS125s, BS4395, part1 BS4395 and part2 JIS 1186