Hex Head Bolt 1/4-20 x 3-1/2 Grade 5 5pk

The Hex Head Bolt 1/4-20 x 3-1/2 Grade 5 5pk from Allstar Performance is an essential fastener for various automotive applications, including engine builds, transmission mounts, and suspension assembly work. These bolts are designed to provide the clamping force and reliability that automotive fabricators and mechanics require.

Constructed to Grade 5 specifications, these bolts typically achieve a tensile strength of around 120,000 PSI, making them suitable for high-vibration and high-load applications. The 1/4-inch diameter and 20 threads-per-inch (TPI) pitch ensure consistent engagement and resistance to loosening, even under stress.

Ideal for professional engine builders and transmission specialists, this five-pack format ensures you have spare bolts for modifications or rebuilds. These bolts are perfect for manifold flanges, motor plate assemblies, and suspension hard points where vibration-induced fatigue is a concern.