Internal Hex, Internal Torx, External Hex
2-1/2 ", 1-5/16 ", 5/8 ", 1 ", 1-1/4 "
1/2, 1-1/2, 3/4, 3/8, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
2-11/16 in, E7, 5 mm, 8 in, 4-1/8 in
6-Point, 4-Point, 7-Point, 8-Point, 12-Point
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