Header Bolt Kit - 6pt. 8mm-1.25 x 25mm (12)

The Header Bolt Kit - 6pt. 8mm-1.25 x 25mm (12) by STAGE 8 FASTENERS is designed for serious engine builders and performance mechanics who require reliable fastening solutions for exhaust headers. This 12-piece kit is essential for ensuring that header installations can withstand the extreme conditions of high-performance or modified engines.

Each bolt in the kit features a 6-point socket head design, which allows for even load distribution, reducing the risk of stress concentration and bolt shear during torque application. The bolts are made to metric standards, with an 8mm diameter and 1.25mm pitch threading, ensuring compatibility with a wide range of OEM and aftermarket header flanges. The 25mm length provides sufficient grip for reliable joint preload.

Mechanics and automotive enthusiasts performing header installations or engine refresh work will find this kit to be a dependable alternative to standard fasteners. By maintaining clamp load under thermal expansion and vibration, these high-strength bolts help prevent gasket leaks and bolt loosening, which are critical for the longevity and performance of exhaust systems.