External Hex, Internal Hex, Internal Torx
6 mm, 7/16 ", 1-5/16 ", 5/8 ", 1-3/8 "
3/4, 1/4, 1/2, 3/8, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-3/4 in, 11/16 in, 13 mm, 15/16 in, 17 mm
4-Point, External Torx, 7-Point, 6-Point, 8-Point
-