Internal Torx, Internal Hex, External Hex, Hex, TX
Imperial, Torx, Metric, AF, SAE
11 mm, 7/16 ", 5 mm, 9/16 ", 1-1/2 "
1/4, 3/4, 1-1/2, 2-1/2, 1
6.35, 38.1, 9.53, 19.05, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide