Internal Hex, Internal Torx, External Hex, Hex, TX
Imperial, AF, Torx, Metric, SAE
7/32 ", 5/8 ", 9/16 ", 3/16 ", 11/16 "
1-1/2, 1, 2-1/2, 1/2, 3/4
6.35, 9.53, 19.05, 38.1, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate