Internal Hex, Internal Torx, External Hex
4 mm, 9/16 ", 5.5 mm, 1-3/8 ", 5/8 "
1/2, 3/4, 1/4, 2-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-3/16 in, 39 mm, 2-7/16 in, 11/16 in, 3-3/8 in
External Torx, 7-Point, 8-Point, 6-Point, 4-Point
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