Secure your fasteners with ease using these Grade F Steel lock nuts. Designed to provide reliable locking action, these nylon insert nuts feature a flanged design for added convenience during installation. Coated with a durable zinc finish, they offer protection against corrosion, ensuring long-lasting performance. With a thread size of 3/8-16 and compliance with IFI 100/107 standards, these nuts are suitable for a variety of applications. Trust in their quality and RoHS compliance for environmentally friendly use.