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The QA1 jam nut with right‑hand 1/4‑28 threads is a steel jam nut with a 7/16‑inch hex supplied as a six‑piece kit. QA1 describes these steel jam nuts as high‑carbon steel with a protective coating and references ANSI B18.2.2‑1972, indicating industrial specification compliance. The family is available in steel or aluminum, with standard and metric threads and clear‑anodized options on aluminum.
QA1 Jam Nut - 1/4-28 Right Hand - 7/16in Hex 5/32in Wide - Steel - 6 Pack
