The QA1 left-hand jam nut kit (3/8-24) contains six steel jam nuts, each with a 9/16" hex and 7/32" face width for coarser left-hand thread locking tasks. These jam nuts secure threaded assemblies by bearing against a mating nut or rod to stop loosening. QA1 offers comparable aluminum options, with standard and metric sizing and clear-anodized finishes for aluminum where specified.
QA1 Jam Nut - 3/8-24 Left Hand - 9/16in Hex 7/32in Wide - Steel - 6 Pack