External Hex, Internal Hex, Internal Torx
5/16 ", 5/8 ", 11 mm, 1-3/8 ", 1-1/4 "
1/4, 1/2, 3/8, 3/4, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 4-1/8 in, 58 mm, 3/4 in, 9/16 in, 4-3/4 in
12-Point, External Torx, 4-Point, 7-Point, 6-Point
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