3/4-16 LH Alum Jam Nuts 4pk

The 3/4-16 LH aluminum jam nuts 4-pack (SKU ALL 18283) from Allstar Performance is a vital fastening component for engine builds and custom fabrication. These nuts are designed for precision assembly work where secure and lightweight threading solutions are required. They are particularly useful in applications where standard right-hand fasteners may loosen due to rotational forces.

These aluminum jam nuts feature a 3/4-16 thread specification, meaning they have a 3/4-inch diameter with 16 threads per inch. The left-hand (LH) orientation reverses the typical threading direction, which helps prevent loosening in applications that rotate counterclockwise. They are precisely machined to stack tightly against standard fasteners, providing dual-lock security without needing a separate lock washer.

Engine builders, fabricators, and motorsports enthusiasts can benefit from these jam nuts, especially in applications involving rotating components. The four-pack allows for securing multiple assemblies or staging a complete engine rebuild without the need for reordering. Their compact weight of 0.11 lbs ensures minimal impact on overall assembly mass, which is advantageous in balancing and tuning.