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QA1 metric jam nut, left-hand M20x1.5 thread with a 30mm hex and roughly 10mm thickness. Constructed from steel and offered in standard metric options, these jam nuts are also available in aluminum. Use them to secure threaded assemblies where a larger-diameter left-hand locking nut is required to maintain position and resist loosening under mechanical load or vibration.
QA1 Metric Jam Nut - M20-1.5 Left Hand - 30mm Hex 10mm Wide - Steel
