Internal Hex, Internal Torx, External Hex, TX, Hex
Torx, AF, Imperial, SAE, Metric
10 mm, 9/32 ", 1 ", 5/8 ", 5/16 "
19.05, 25.4, 9.53, 38.1, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide