Hexagonal Lock Nut designed to secure bolts and prevent loosening under vibration. Features a width across flats of 19 mm (3/4 in) and a thread pitch of 1.75 mm (0.07 in) for precise fitting. Includes a locking type B mechanism, with a wrench height of 8 mm (5/16 in) and a thickness of 12 mm (0.47 in). Made from high quality material for durability and strength. Finished with zinc coating to resist corrosion and extend product life.