External Hex, Internal Hex, Internal Torx
4 mm, 1-1/8 ", 10 mm, 1-3/8 ", 5/8 "
3/8, 1/2, 2-1/2, 1-1/2, 1/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 1-1/4 in, 7/8 in, 39 mm, 24 mm
4-Point, 8-Point, 12-Point, 7-Point, 6-Point
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