External Torx, Internal Hex, External Hex, TX, Hex
Imperial, Torx, AF, Metric, SAE
5 mm, 3/16 ", 11/16 ", 9 mm, 35 mm
1/4, 1-1/2, 1, 2-1/2, 3/8
19.05, 25.4, 9.53, 38.1, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide