Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, AF, Torx, SAE, Metric
9/16 ", 3/16 ", 16 mm, 14 mm, 32 mm
1/2, 1/4, 2-1/2, 1-1/2, 3/8
12.5, 6.35, 9.53, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide