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