External Torx, External Hex, Internal Torx, TX, Hex
Torx, AF, Imperial, SAE, Metric
7/32 ", 9/16 ", 5.5 mm, 7/16 ", 1-1/2 "
38.1, 6.35, 19.05, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide