The QA1 left-hand jam nut kit with 7/16–20 threads includes five aluminum nuts, each sized with an 11/16-inch hex and 1/4-inch thickness for reversed-thread applications. These jam nuts lock against rotation when used with a mating fastener. Offered in QA1's steel or aluminum options with standard and metric choices and clear-anodized finish to supply spares for threaded hardware.
QA1 Jam Nut - 7/16-20 Left Hand - 11/16in Hex 1/4in Wide - Aluminum - 5 Pack