External Torx, Internal Hex, External Hex, TX, Hex
AF, Torx, Imperial, Metric, SAE
7/16 ", 11/16 ", 5/16 ", 5/8 ", 16 mm
1, 3/4, 3/8, 2-1/2, 1-1/2
25.4, 19.05, 38.1, 9.53, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide