(4-Pack) Car Exhaust Manifold Bolts, M10x1.5 mm Exhaust Bolts and Nuts Kit with Springs for Exhaust Gasket,Professional Exhaust Flange Bolts Car Accessories for Most Cars

● Sizes: Bolt Length: 2.9 inch Stud Diameter: 9.7 mm, Stud Length: 2.55 inch Thread Pitch 1.5 mm, Thread Length 1.35 inch Nut OD: 0.78 inch Spring Length: 1.78 inch, Spring OD: 0.63 inch Washer OD: 0.78 inch, Washer ID: 0.4 inch ● Weight: 5.09 oz ● Material: Manganese Steel, Steel 45 ● Packaging: Spring*4, Screw*4, Nut*4, Washer*4 ● The screw is manufactured from 45 gauge steel and the spring is composed of manganese steel. ● Able to withstand extreme conditions and still maintain high performance. ● Car bolts are one of the key components to keep the exhaust system working properly. ● This car bolt is different from similar products in the market, we also specially equipped with springs.

• 1. Vibration Dampening Springs Unlike conventional exhaust fasteners, our kit includes specially designed springs that absorb vibrations, reduce stress on connected components, and enhance durability. Even under high temperatures, the springs adjust to thermal expansion to maintain a secure seal and system stability.
• 2. Secure Exhaust Gasket Sealing These bolts provide critical clamping force to keep exhaust gaskets tightly sealed. By applying consistent pressure, they prevent leaks and ensure optimal contact between surfaces, supporting efficient engine performance.
• 3. Premium Heat-Resistant Steel Construction Manufactured from manganese steel and Grade 45 steel, these bolts withstand extreme heat and vibration. They retain strength and performance under harsh conditions, promoting safer and more reliable exhaust system operation.
• 4. Precise Size Compatibility Each bolt has a total length of 2.9 inches, stud diameter of 9.7mm, thread pitch of 1.5mm, threaded section length of 1.35 inches, and stud length of 2.55 inches. Please verify sizing before purchasing to ensure proper fit.
• 5. Complete Installation Kit Each set includes 4 springs, 4 screws, 4 nuts, and 4 washers — everything needed for a straightforward installation. Ideal for both routine maintenance and exhaust system repairs.