Internal Torx, External Hex, TX, Hex, External Torx
AF, Torx, Imperial, Metric, SAE
7/16 ", 5/8 ", 3/16 ", 11/16 ", 28 mm
1, 2-1/2, 1-1/2, 1/2, 3/8
38.1, 9.53, 25.4, 19.05, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide