The QA1 left-hand jam nut (3/8-24) is an aluminum locking nut with a 9/16" hex and 7/32" face width, suited for coarser left-hand threaded assemblies where lighter weight or corrosion resistance is desired. It locks against a companion nut or threaded stud to prevent loosening. QA1 supplies this style in steel or aluminum, offering standard and metric sizing and clear-anodized finishes for aluminum.
QA1 Jam Nut - 3/8-24 Left Hand - 9/16in Hex 7/32in Wide - Aluminum