The Elkay 1" NPS Zinc Locknut is a reliable component for securing drain fittings in plumbing applications. Designed to fit standard 1" NPS threads, this locknut ensures a tight seal, preventing leaks and maintaining system integrity. Made from durable zinc, it offers excellent resistance to corrosion and wear, making it suitable for both indoor and outdoor use. This locknut is essential for various plumbing installations, ensuring compliance with industry standards. Ideal for use in kitchen and bathroom sinks, it provides a secure connection for drain assemblies.