Internal Hex, Internal Torx, External Hex, 6-Point
5/16 ", 9/32 ", 2-1/2 ", 9 mm, 5/8 "
2-1/2, 3/4, 1-1/2, 3/8, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
30 mm, 4-1/8 in, 43 mm, 58 mm, 2-7/16 in
12-Point, External Torx, 8-Point, 7-Point, 4-Point
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