5/8 Aluminum Round Tube 18in Discontinued

The 5/8 Aluminum Round Tube 18in by Allstar Performance is a precision suspension component designed for builders and fabricators working on custom vehicle suspensions, roll cages, and chassis reinforcement projects. This discontinued tube remains sought after by experienced mechanics and fabricators who trust Allstar's engineering for critical structural applications. Whether you're modifying a street rod, race car, or restoring a classic, this aluminum tube provides the strength-to-weight ratio needed for high-performance builds where every pound counts.

Machined from aluminum with a clear anodized finish, the 5/8 Aluminum Round Tube features a 0.875-inch outer diameter and 5/8-18 inch female threading, enabling seamless integration into threaded suspension assemblies and rod-end connections. The 18-inch length provides versatility for control arm fabrication, lateral support bars, or adjuster tubes in independent suspension systems. Clear anodizing protects the aluminum from corrosion while maintaining visibility of the material quality and weld penetration—critical for inspection and peace of mind in high-stress suspension geometry. At just 0.55 pounds, this tube contributes minimal unsprung or sprung mass, a key advantage in tuning suspension response and reducing brake fade.

Fabricators, chassis builders, and vintage motorsport enthusiasts benefit most from this component when assembling double-wishbone or A-arm suspensions where threaded adjustment is required. The female thread allows easy connection to rod ends, spherical bearings, or adjustable sleeves without additional hardware. Installation requires basic welding and threading knowledge; ensure proper TIG or MIG technique when integrating into your suspension frame to maintain structural integrity. Compatibility depends on your specific suspension design and rod-end sizing—verify thread pitch and overall geometry before ordering.