Internal Hex, Internal Torx, External Hex
5/16 ", 11 mm, 26 mm, 1-1/8 ", 1 "
2-1/2, 1/2, 3/4, 1-1/2, 1
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 43 mm, 2-1/2 in, 13/16 in, 1-1/4 in
External Torx, 4-Point, 7-Point, 6-Point, 12-Point
-