Internal Torx, Internal Hex, External Hex, Hex, TX
Torx, Imperial, AF, SAE, Metric
9/32 ", 7/16 ", 11/16 ", 15 mm, 29 mm
3/8, 2-1/2, 1-1/2, 1, 3/4
38.1, 25.4, 9.53, 19.05, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide