O-Ring Carb Nut 5/16-18 Alum

The O-Ring Carb Nut 5/16-18 Alum from QUICKCAR RACING PRODUCTS is a precision thumb screw assembly designed for carburetor air cleaner systems and fuel system applications where secure, vibration-resistant fastening is critical. This component serves as a replacement or upgrade part for vehicles where quick adjustments and reliable hold-down strength matter, whether you're fine-tuning a high-performance engine or ensuring a secure fit in various automotive applications.

Machined from aluminum and finished in a natural (uncoated) state, the O-Ring Carb Nut 5/16-18 Alum features a 5/16-18 inch thread specification that meets standard automotive fastener tolerances. The integrated O-ring sealing surface eliminates the need for separate gaskets, streamlining installation and reducing potential leak points. The thumb screw design allows for one-handed tightening without tools, enabling quick adjustments during tuning sessions or emergency repairs.

This fastener is ideal for carburetor rebuilders, engine technicians, and performance enthusiasts who demand reliable components for their projects. Its lightweight aluminum construction minimizes rotational mass while maintaining corrosion resistance, making it suitable for various environments. Whether you're working on a racing engine or a standard vehicle, this O-Ring Carb Nut provides the performance and reliability needed for effective fuel system management.