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Hexagonal Lock Nut designed to secure bolts and prevent loosening under vibration. Features a 14 mm (0.55 in) thread size, 2 mm (0.08 in) thread pitch, and 21 mm (0.83 in) width across flats for versatile applications. Includes a D-type locking mechanism and measures 9.68 mm (0.38 in) in wrench height and 14.10 mm (0.56 in) in thickness for enhanced stability. Made from high quality general steel. Finished with zinc coating for superior corrosion resistance.