Internal Torx, External Hex, Internal Hex, Hex, TX
AF, Torx, Metric, Imperial, SAE
13/16 ", 5/16 ", 3/16 ", 5.5 mm, 11/16 "
1/4, 1, 1-1/2, 3/8, 2-1/2
38.1, 25.4, 6.35, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide