Internal Torx, External Hex, Hex, TX, External Torx
Imperial, Metric, AF, Torx, SAE
7 mm, 12 mm, 5/8 ", 30 mm, 11/16 "
1/4, 2-1/2, 1-1/2, 3/4, 3/8
38.1, 6.35, 25.4, 9.53, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide