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The QA1 left-hand jam nut (1/4-28) is an aluminum locking nut with a 7/16" hex and 5/32" face width, sized for finer-thread applications where corrosion resistance and lighter weight matter. It locks against an opposing nut or threaded component to prevent loosening on left-hand threads. QA1 provides this style in steel or aluminum, with standard and metric options and clear anodizing for aluminum.
QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Aluminum
