Internal Hex, Internal Torx, External Hex
5/8 ", 2-1/2 ", 4 mm, 15/16 ", 1-3/8 "
1/2, 1/4, 2-1/2, 3/4, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
15/16 in, 8 in, 4-1/16 in, 39 mm, 1-3/8 in
6-Point, 4-Point, 8-Point, 12-Point, 7-Point
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