External Hex, Internal Hex, Internal Torx
9/16 ", 5.5 mm, 9 mm, 5/8 ", 7/8 "
1-1/2, 2-1/2, 1/4, 1, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 8 in, 19 mm, 3/4 in, 9/16 in, 15/16 in
12-Point, External Torx, 7-Point, 4-Point, 6-Point
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