External Torx, Internal Hex, External Hex, TX, Hex
Imperial, Metric, AF, Torx, SAE
7/8 ", 7/16 ", 11/16 ", 32 mm, 1-1/2 "
1/4, 3/4, 1-1/2, 2-1/2, 3/8
9.53, 38.1, 19.05, 12.5, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide