Internal Hex, Internal Torx, External Hex
5/16 ", 18 mm, 5/8 ", 23 mm, 1-3/8 "
1-1/2, 1, 2-1/2, 3/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
7/16 in, 4-3/4 in, 39 mm, 2-7/16 in, 5/16 in
External Torx, 4-Point, 7-Point, 6-Point, 12-Point
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