Internal Hex, Internal Torx, External Hex, TX, Hex
Metric, Imperial, AF, Torx, SAE
7/16 ", 5/8 ", 7/8 ", 14 mm, 5/16 "
1/4, 3/4, 1-1/2, 2-1/2, 3/8
19.05, 12.5, 6.35, 9.53, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide