Internal Hex, Internal Torx, External Hex
2-1/2 ", 4 mm, 1-1/2 ", 1-5/16 ", 5/8 "
1-1/2, 2-1/2, 3/8, 3/4, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
E7, 8 in, 1-1/4 in, 8 mm, 17 mm
External Torx, 8-Point, 7-Point, 12-Point, 6-Point
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