Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, Torx, AF, SAE, Metric
13/16 ", 5 mm, 9/16 ", 11/16 ", 36 mm
2-1/2, 1-1/2, 1/2, 3/8, 1
19.05, 25.4, 9.53, 38.1, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate