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The QA1 left-hand jam nut kit (5/16-24) includes five steel jam nuts, each with a 1/2" hex and 3/16" face width for locking medium-thread left-hand applications. These nuts secure adjustments by bearing against companion hardware to prevent loosening. QA1 also supplies aluminum variants, with standard and metric sizing and clear-anodized finishes available on aluminum parts.
QA1 Jam Nut - 5/16-24 Left Hand - 1/2in Hex 3/16in Wide - Steel - 5 Pack
