Internal Hex, Internal Torx, External Hex
1-5/16 ", 16 mm, 5.5 mm, 5/8 ", 1-1/4 "
1, 2-1/2, 1/4, 1-1/2, 3/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
1-15/16 in, 1 in, E7, 8 in, 15/16 in
External Torx, 4-Point, 7-Point, 6-Point, 8-Point
-