W40550: Hexagonal Lock Nut, M20

Hexagonal Lock Nut designed to provide secure fastening and prevent loosening under vibration. Key specs: Flange diameter of 42.80 mm (1.69 in), locking type D, wrench height of 10.70 mm (0.42 in). Additional specs: Thickness of 22.40 mm (7/8 in), thread size of 20 mm (0.79 in), width across flats of 30 mm (1.18 in), thread pitch of 2.50 mm (0.1 in). Made from high-quality general steel for durability and strength. Zinc finish for enhanced corrosion resistance and long-lasting performance.