External Hex, Internal Torx, Hex, TX, External Torx
Torx, AF, Imperial, SAE, Metric
5/8 ", 3/16 ", 28 mm, 1-1/2 ", 11/16 "
19.05, 9.53, 6.35, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide