Internal Hex, Internal Torx, External Hex
4 mm, 7/16 ", 5/16 ", 5/8 ", 1-3/8 "
1, 1-1/2, 2-1/2, 3/8, 3/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
2-1/4 in, 8 in, 4-1/8 in, 58 mm, 39 mm
8-Point, 7-Point, 4-Point, 12-Point, 6-Point
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