10 Pcs M8×1.25 Exhaust Manifold Gasket Nut, Hex Flange Lock Nuts for Exhaust Pipes & Manifolds, OEM#A1201420072 Replacement, Copper Plated Rose Gold, 0.5 Inch Hex Width

The M8×1.25 Exhaust Manifold Nuts (10 Pcs) are precision-engineered replacements for exhaust system applications. Featuring a flange design and copper-plated rose gold finish, these nuts provide secure, corrosion-resistant fastening for manifolds, exhaust pipes, mufflers, and flanges in high-temperature, high-vibration automotive environments.OEM Replacement: Direct replacement for OEM part number A1201420072. Ideal for exhaust manifold, pipe, and muffler connections requiring M8×1.25 threaded fasteners.Precision Thread Size: M8×1.25 metric fine pitch thread. Hex width 0.50 inch (12.7mm), height 0.25 inch (6.35mm), inner diameter 0.34 inch (8.6mm).Flange Locking Design: Integrated flange increases contact area for even clamping force distribution—reduces loosening from thermal cycling and vibration common in exhaust systems.Durable Copper Plating: Rose gold copper-plated surface provides excellent corrosion resistance and rust protection, ensuring long-lasting performance in harsh under-vehicle conditions.High-Strength Construction: Forged from high-strength iron with exceptional mechanical strength and tensile resistance—built to withstand extreme temperatures and intense vibration.10-Piece Value Pack: Includes 10 nuts—enough for a complete manifold installation with spares for future maintenance or replacements.Specifications: Thread Size: M8×1.25 (Metric Fine Pitch) Hex Width: 0.50 inch (12.7mm) Height: 0.25 inch (6.35mm) Inner Diameter: 0.34 inch (8.6mm) Total Size: 0.69 × 0.69 × 0.37 inch Material: High-strength iron with copper plating Finish: Rose Gold Quantity: 10 pieces OEM Reference: A1201420072 Weight: 2.92 oz (82.8g) total Package Size: 4.33 × 3.34 × 0.67 inchNote: Please verify thread size (M8×1.25) and compatibility with your vehicle before purchasing. Professional installation recommended for exhaust system components. Torque to manufacturer specifications for optimal performance.

• 【Package Contents】 You will receive 10 pieces of M8×1.25 hexagonal exhaust nuts, OEM reference part number A1201420072. This ample quantity is sufficient for a complete manifold or exhaust pipe repair, while also providing spares for future maintenance or replacement of lost nuts.
• 【Specialized Design for Extreme Conditions】 These automotive hexagonal nuts are specifically engineered for securing connections in exhaust manifolds, piping systems, muffler interfaces, and flanges. They deliver reliable clamping force under the sustained extreme temperatures and intense vibrations inherent in engine systems, ensuring your exhaust components stay securely fastened.
• 【Precision Thread Specifications】 Manufactured strictly to the M8×1.25 thread standard with precise dimensions: Hex width: 0.50 inch (12.7mm); Height: 0.25 inch (6.35mm); Inner diameter: 0.34 inch (8.6mm); Total size: 0.69 × 0.69 × 0.37 inch; Please verify the thread specifications of your vehicle's original nuts before purchasing to ensure proper fitment.
• 【Flange Design for Even Load Distribution】 The standard hexagonal shape allows easy tightening with open-end wrenches or sockets. The flange design at the nut's base increases the contact area with the connecting component, facilitating more even distribution of preload force. This reduces the risk of loosening due to thermal cycling and vibration.
• 【Durable Copper-Plated Material】 Each nut is forged from high-strength iron with a copper-plated surface (rose gold finish), delivering exceptional mechanical strength and tensile resistance. The copper plating significantly enhances rust resistance, enabling these nuts to withstand harsh under-vehicle environments including moisture, road salt, and high exhaust temperatures.