This 40mm threaded 3-screw lock nut is engineered to securely fasten kitchen faucets, providing a stable and reliable installation. Its threaded design, combined with a three-screw locking mechanism, offers strong grip and easy tightening for enhanced support at the faucet base—effectively preventing movement or loosening over time. Ideal for standard kitchen faucet setups, this lock nut ensures a firm hold and a hassle-free, long-lasting solution for maintaining faucet stability.