External Hex, Internal Hex, Internal Torx, External Torx
1-5/16 ", 5/8 ", 5.5 mm, 1-3/8 ", 7/8 "
3/4, 1, 1-1/2, 2-1/2, 1/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-3/4 in, 7/8 in, 11/16 in, 15/16 in, 5/16 in
6-Point, 8-Point, 12-Point, 7-Point, 4-Point
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