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QA1 metric jam nut, left-hand M12x1.25 thread with a 19mm hex and approximately 6mm thickness. Made from steel and offered in standard metric sizes, these jam nuts are available in steel or aluminum finishes and clear anodized options. They provide a compact locking solution for metric threaded assemblies where a left-hand nut is required to secure adjustments or components.
QA1 Metric Jam Nut - M12-1.25 Left Hand - 19mm Hex 6mm Wide - Steel
