4PCS Premium Exhaust Manifold Fastener Kit – M10x1.5mm High-Temp Flange Bolts & Locking Nuts with Anti-Vibration Springs – Reinforced Sealing Solution for Exhaust Gaskets – Fits Most Vehicle Models

4PCS Premium Exhaust Manifold Fastener Kit – M10x1.5mm High-Temp Flange Bolts & Locking Nuts with Anti-Vibration Springs – Reinforced Sealing Solution for Exhaust Gaskets – Fits Most Vehicle Models

• ✔ Advanced Vibration Control – Our exclusive spring-loaded design actively counters engine vibrations, reducing component fatigue and preventing loosening over time. The thermal-compensating springs maintain consistent pressure across temperature fluctuations.
• ✔ Leak-Proof Gasket Retention – Precision-engineered bolt heads create uniform clamping force to establish a permanent metal-to-metal seal, eliminating exhaust leaks and backpressure issues that can compromise engine performance.
• ✔ Military-Grade Heat Resistance – Forged from aerospace-grade manganese alloy and hardened 45 steel, these fasteners maintain structural integrity even when exposed to 1300°F+ exhaust gases and constant thermal cycling.
• ✔ Engineer-Approved Specifications – Features 74mm total length with 9.7mm shank diameter and 34mm threaded portion (1.5mm pitch). The 65mm stud length provides optimal engagement for flange connections.
• Professional-Grade Complete Set – Each kit contains 4 flanged bolts, 4 locking nuts, 4 crush washers, and 4 high-tension springs – all pre-matched for perfect compatibility. No need to source additional components for installation.