carriage bolts GB30,GB21,GB5780-5786,ANSI,DIN 93,933,601,558,603,975, Size ... Zinc Yellow Zinc HDGGB21 GB5780-5786ANSI 2A-61/4" - 2"3/8" - 25"5A-10 8DIN 4.8 5 ... 6004.8 8.8 10.9 ANSI G-41/4" - 2"5/16" - 25"2 5 8DIN912 78984M4-M486-6004.8 ... -M5612-10004.8 8.8 10.9 (Grade-2)ANSI C-61/4" - 2"1/2" - 40"DIN938 939 835M4 - M5612 - ... 4.8-12.9ANSISize:1/4"-2"Length: 3/8"-25"Property Grade:2,5,8,12.9DIN 931,933 ...