ACCELERATOR DISCHARGE NOZZLE SCREW - SOLID

The Holley Accelerator Discharge Nozzle Screw – Solid is a precision fastener engineered for carburetor tuning and high-performance engine builds. As a seasoned mechanic knows, the discharge nozzle assembly controls fuel atomization during acceleration, and this solid steel screw is the anchor point that holds that critical assembly in place. Whether you're restoring a classic muscle car, dialing in a street machine, or rebuilding a stock Holley four-barrel, this component ensures repeatable, reliable fuel delivery when you need it most. Without a secure discharge nozzle screw, carburetor performance becomes unpredictable and tuning efforts become wasted effort.

Manufactured from solid steel and finished with zinc oxide coating, this accelerator discharge nozzle screw resists corrosion while maintaining the exact clamping force required for consistent carburetor calibration. The zinc oxide finish protects against rust in both wet storage and under-hood conditions, extending service life and preventing the degradation that leads to fuel leaks or poor metering. At just 0.02 lbs, this fastener is lightweight but engineered to Holley's exacting standards—meaning thread pitch, head geometry, and material composition are matched precisely to factory specifications. Proper torque application during installation ensures the nozzle assembly remains stationary, preventing vibration-induced loosening that could compromise air-fuel ratios across the RPM band.

Carburetor enthusiasts, restoration shops, and engine builders rely on OEM Holley fasteners like this discharge nozzle screw to maintain authenticity and performance integrity. If you're replacing worn hardware during a full Holley carb rebuild or upgrading from corroded original equipment, this solid steel screw is the correct choice for any Holley carburetor platform. Installation is straightforward—remove the old screw, clean the threaded bore, and install the new fastener with appropriate torque specs per your carb manual. Stock this part if you service multiple vehicles or maintain a shop inventory; it's an economical insurance policy against unnecessary carburetor disassembly or fuel-system troubleshooting down the road.