Upgrade your angle grinder setup with the 5/8"-11 Angle Grinder Flange Nut Set, a 2-pack that delivers industrial-grade performance and reliability. Crafted from heavy-duty carbon steel with heat-treated hardness and a wear-resistant, rust-proof finish, these flange nuts are built to withstand the toughest grinding and cutting jobs. Rated for speeds exceeding 12,000 RPM, they provide the secure, stable hold your discs demand. The set includes one silver D-ring nut and one knurled arbor nut, both featuring a tool-free quick-release design for fast, effortless disc changes. Compatible with standard 5/8"-11 attachments, these nuts fit a wide range of grinder sizes including 4-1/2", 5", 7", and 9" models. The self-locking mechanism ensures your disc stays firmly in place throughout every task, giving you confidence and control whether you're cutting, grinding, or polishing. The knurled outer edge provides a sure grip even with gloved hands, making swaps quick and safe on the job site.