Hex Nuts - 1/4-28 (10)

The ARP Hex Nuts – 1/4-28 (10) are precision-engineered fasteners designed for applications requiring reliable thread locking and vibration resistance. This 10-piece set delivers the dependability that professional mechanics, gunsmiths, and motorsports enthusiasts demand when assembling critical components. Whether you're building a competition firearm, servicing high-performance engines, or maintaining tactical equipment, these locking nuts ensure fasteners stay secure under recoil, acceleration, and operational stress.

Constructed from hardened steel with a cadmium finish, these hex nuts feature a serrated flange design that grips threads mechanically, preventing loosening without requiring threadlocker compound. The 1/4-28 thread specification delivers a fine pitch profile ideal for precision applications where thread contact and holding power are paramount. The 7/16-inch hex head provides accessible engagement with standard wrenches and sockets, enabling quick installation and removal when service is needed. ARP's manufacturing standards ensure consistent dimensional accuracy and material hardness throughout the set.

These locking nuts excel in high-vibration environments where standard fasteners would fail—bolt-action rifle builds, AR-platform receivers, engine bay assembly, and performance suspension systems all benefit from the serrated flange's mechanical lock. The cadmium plating provides corrosion resistance suitable for field conditions and storage. Each set of 10 offers sufficient inventory for major projects or recurring maintenance tasks. Compatibility extends to any application using 1/4-28 threads, making this a versatile component for firearms, automotive, and industrial assembly work.