7/16-20 LH Steel Jam Nuts 4pk

The 7/16-20 LH Steel Jam Nuts 4pk from Allstar Performance are precision fasteners designed for critical engine and suspension assembly work. These fasteners are particularly useful in applications where vibration isolation and secure locking are essential, making them a reliable choice for mechanics and automotive enthusiasts.

Manufactured from hardened steel with a 7/16-20 thread pitch and left-hand rotation, these jam nuts utilize a friction-lock design to deliver reliable clamping force when torqued against a standard nut or directly onto a stud. This dual-lock system effectively prevents loosening due to thermal cycling and engine vibration, ensuring that bolted connections remain secure over time.

These left-hand threaded fasteners are ideal for various automotive applications, including carburetor linkage and throttle cable brackets. They are particularly beneficial for vintage muscle car restorations and competition engine builds, where precision and reliability are crucial for optimal performance.