External Hex, Internal Hex, Internal Torx
3/16 ", 2-1/2 ", 20 mm, 1-3/8 ", 1-1/4 "
3/8, 1-1/2, 1, 1/4, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
36 mm, 8 in, 4-1/16 in, 39 mm, 1-3/8 in
4-Point, 7-Point, 6-Point, 8-Point, External Torx
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