The QA1 jam nut with right‑hand 5/16‑24 threads is a steel jam nut sized with a 1/2‑inch hex and a 3/16‑inch face, supplied as a six‑piece kit. The kit supplies multiple compact locking nuts suitable for fastener assemblies needing thin secondary nuts. QA1 offers these jam nuts in steel or aluminum, across standard and metric threads, and with clear‑anodized finish options for aluminum.
QA1 Jam Nut - 5/16-24 Right Hand - 1/2in Hex 3/16in Wide - Steel - 6 Pack