External Hex, Internal Hex, Internal Torx
2-1/2 ", 6 mm, 5/16 ", 5/8 ", 1-3/8 "
3/4, 1/4, 2-1/2, 1/2, 1-1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 13/16 in, 21 mm, 70 mm, 1-1/4 in
External Torx, 7-Point, 6-Point, 8-Point, 12-Point
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