External Hex, Internal Hex, Internal Torx
4 mm, 5/16 ", 1-5/16 ", 5/8 ", 1-3/8 "
3/4, 1, 2-1/2, 3/8, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
5 mm, 8 in, 30 mm, 3/4 in, 9/16 in, 3-3/8 in
6-Point, External Torx, 4-Point, 7-Point, 12-Point
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