External Hex, Internal Hex, Internal Torx
5/16 ", 20 mm, 5/8 ", 1-3/8 ", 1-1/4 "
1-1/2, 2-1/2, 3/4, 1/2, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
E7, 3-9/16 in, 8 in, 58 mm, 4-3/4 in
12-Point, 4-Point, 8-Point, 7-Point, 6-Point
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