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The QA1 left-hand jam nut kit (1/4-28) includes six aluminum jam nuts with a 7/16" hex and 5/32" face width, intended to lock fine-thread assemblies and prevent loosening on left-hand threads. Each nut bears against a mating nut or rod to secure adjustments. QA1 supplies these in steel or aluminum, with standard and metric options and clear-anodized finishes for aluminum.
QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Aluminum - 6 Pack
