Internal Torx, External Hex, Hex, TX, 6-Point
Imperial, Metric, AF, Torx, SAE
9/32 ", 15/16 ", 5/16 ", 11 mm, 9/16 "
1/2, 3/4, 1, 1-1/2, 2-1/2
38.1, 12.5, 6.35, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide