Internal Torx, External Hex, Hex, TX, External Torx
AF, Torx, Imperial, SAE, Metric
9/32 ", 5/8 ", 5.5 mm, 5/16 ", 11/16 "
19.05, 9.53, 6.35, 25.4, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide