External Torx, Internal Hex, External Hex, Hex, TX
Imperial, Torx, Metric, AF, SAE
7/16 ", 5/8 ", 35 mm, 1-1/2 ", 11/16 "
1/4, 1-1/2, 1, 2-1/2, 1/2
12.5, 6.35, 9.53, 38.1, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Phosphatized, Oxidised, Black Phosphate, Black Oxide