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