External Hex, Internal Hex, Internal Torx, External Torx
5/8 ", 5.5 mm, 15/16 ", 1-1/4 ", 21 mm
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 1-1/4 in, 58 mm, 3/4 in, 9/16 in, 4-3/4 in
12-Point, 6-Point, 7-Point, 8-Point, 4-Point
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