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