1/2in Steel Tube 4in 3/4in OD

The 1/2in Steel Tube 4in 3/4in OD from ALLSTAR PERFORMANCE is a precision suspension component engineered for hot rodders, race car builders, and fabricators who demand reliable structural support in custom chassis and suspension systems. This steel tube serves as a critical link in lower control arms, radius rods, and triangulated bracing—applications where dimensional accuracy and material strength directly impact suspension geometry, handling characteristics, and long-term durability under dynamic loads. Whether you're building a classic car from the ground up or upgrading an existing suspension setup, this component provides the foundation needed for repeatable, predictable performance.

Manufactured to ALLSTAR PERFORMANCE's specifications, this 4-inch-long steel tube features a 3/4-inch outer diameter with a 1/2-20 female thread for secure, vibration-resistant connection to ball joints, rod ends, or other suspension hardware. The black zinc finish provides corrosion resistance against road salt, moisture, and temperature cycling—essential protection for components exposed to the elements. The exact 4-inch length and 1/2-20 thread specification ensure compatibility with standard suspension geometry calculations and allow precise tuning of roll center, instant center location, and suspension leverage ratios during design and fabrication phases.

This tube is ideal for fabricators, race shops, and serious enthusiasts who machine or weld custom suspension assemblies for street rods, circle-track cars, autocross platforms, and off-road vehicles. The 1/2-20 female thread accepts standard rod ends (male 1/2-20 thread) commonly available in automotive suspension catalogs, making sourcing and assembly straightforward. At 0.16 lbs per piece, lightweight construction helps reduce unsprung weight—a key factor in improving acceleration, braking response, and ride quality. Verify thread orientation and overall tube length against your suspension blueprint before ordering multiple units for complete assembly.