QA1 Jam Nut - 1/2-20 Left Hand - 3/4in Hex 5/16in Wide - Steel

Steel jam nut with left hand 1/2-20 threads with a 3/4 hex.
QA1 offers steel jam nuts for the industrial market. Steel jam nuts are made with high carbon steel and a protective coating and reference ANSI B18.2.2-1972.