External Hex, Internal Hex, Internal Torx
2-1/2 ", 4 mm, 15/16 ", 1-3/8 ", 5/8 "
2-1/2, 1-1/2, 1, 3/4, 3/8
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 11 mm, 28 mm, 19 mm, 26 mm
External Torx, 4-Point, 12-Point, 8-Point, 7-Point
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