1/4-28 LH Steel Jam Nuts 10pk

The 1/4-28 LH Steel Jam Nuts 10pk from ALLSTAR PERFORMANCE provides precision fastening for high-performance automotive and mechanical applications where left-hand threads are required. Jam nuts are essential locking devices used to secure adjustable components—such as rod ends, turnbuckles, and threaded shafts—by creating a dual-nut locking system that prevents vibration-induced loosening. This 10-piece set delivers reliable corrosion resistance and repeatability across engine bay, suspension, and drivetrain work.

Manufactured from steel with zinc-oxide plating, these left-hand threaded nuts meet the 1/4-28 specification and are designed to work in tandem with a primary nut to lock assemblies against rotational movement. The zinc-oxide finish provides baseline corrosion protection suitable for both street and off-road environments, while the steel construction ensures consistent hardness and thread integrity under repeated assembly and disassembly cycles. The compact 10-pack format makes these nuts ideal for builders maintaining a service kit or completing multiple jam-nut applications on a single project.

These nuts are most beneficial for fabricators, engine builders, and suspension specialists who work with adjustable rod ends, tie-rod ends, and custom-length fasteners that demand reliable anti-rotation locking. Left-hand jam nuts are particularly common in drag racing, circle-track, and street-rod builds where components must be tuned and locked down precisely. Installation is straightforward: position the primary nut, thread the jam nut up against it, then torque both together to secure the connection and prevent unwanted backing-out under load or vibration.