1[Nut Specification] 5/8 11 thread, 45mm diameter, 9.5mm thickness, the angle grinder lock nut is ideal for various grinding and polishing tasks. 2[High Strength] Crafted from high strength alloy steel, this grinder quick release nut offers superb working strength, resistance to deformation, and exceptional durability for longer use. 3[Quick and Easy Operations] This grinder lock nut allows for effortless tightening by clockwise rotation and quick releasing by counterclockwise rotation, eliminating the need for a wrench. 4[Convenient Ring Pull Design] The grinder quick clamping nut features a ring pull design that ensures easy usage and installation, simplifying your working process. 5[Wide Compatibility] The angle grinder flange nut is compatible with most types of grinding wheels, sanding wheels, offering versatility in different grinding and cutting tasks. 2 x 5/811 Grinder Nut