Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, Imperial, AF, SAE, Metric
7/32 ", 7/16 ", 6 mm, 9 mm, 5/8 "
1, 3/4, 1-1/2, 2-1/2, 1/2
38.1, 6.35, 25.4, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide