3/4-16 RH Steel Jam Nuts Thin OD 4pk

The ALLSTAR PERFORMANCE 3/4-16 RH Steel Jam Nuts Thin OD 4pk (ALL 18294) is a precision fastening solution designed for high-performance engines, racing applications, and threaded rod assemblies where dual-nut locking is critical. These right-hand thread jam nuts feature a thin outer diameter profile, allowing them to nest tightly alongside standard nuts for secure, vibration-resistant fastening without adding excessive bulk to the assembly.

Each nut in this 4-pack is machined from steel and finished with a zinc-oxide coating to resist corrosion and oxidation across engine bay temperatures and moisture conditions. The 3/4-16 thread specification matches 3/4-inch diameter studs with 16 threads per inch—a common fastener size in automotive, marine, and industrial equipment. The thin OD design is essential when space is limited or when the jam nut must tighten against a standard nut without protruding beyond the fastener's working diameter, maintaining clean assembly geometry and preventing interference with adjacent components.

These jam nuts serve engine builders, fabricators, and technicians who demand reliable dual-nut locking on critical fastening points. The four-piece quantity is ideal for stocking essential spares or completing small repair jobs where only one or two backup nuts are needed. ALLSTAR PERFORMANCE is recognized in the racing and automotive aftermarket for fasteners engineered to withstand vibration and thermal cycling without loosening—critical when bolt failure could damage a high-dollar engine or create safety hazards on track or street.