Internal Hex, Internal Torx, External Hex
5/16 ", 5.5 mm, 2-1/2 ", 1-1/8 ", 1-1/4 "
3/4, 1/2, 1-1/2, 2-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
43 mm, 39 mm, 7/8 in, 17 mm, 3-3/8 in
External Torx, 12-Point, 8-Point, 7-Point, 6-Point
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