30PCS M8 x 1.25 Exhaust Manifold Hex Nuts, Copper-Plated Self-Locking Flange Nut Kit, Replacement Reference A1201420072 for Automotive Header, Muffler and Exhaust Pipe Repairs

Product AttributesProduct: Self-Locking Exhaust Manifold Hex Flange NutThread Size: M8 x 1.25Material: High-Strength Iron AlloySurface: Copper PlatedPackage: 30 x Exhaust Manifold NutsOEM NumberA1201420072Compatible ApplicationsExhaust manifold studs and flange joints requiring M8 x 1.25 nutsAutomotive header systems requiring the same thread specificationExhaust pipe and muffler connections on cars and trucks requiring the same sizeWarm TipsA1201420072 is a replacement reference number. Confirm stud diameter, thread pitch, and required nut style before ordering.Product Feature & FunctionsCopper-plated iron alloy resists corrosion, heat, and wear in exhaust environmentsFlange base distributes clamping pressure across the jointPrecision threads support a tight exhaust connection and help reduce looseningHex profile works with a matching wrench or socket for service installationThirty-piece package supports repair, replacement, and spare use

• M8 x 1.25 Reference Fit: This 30-piece kit uses the M8 x 1.25 thread specification and references A1201420072 for exhaust manifold and flange fastening; verify the thread before ordering.
• Copper-Plated Iron Alloy: High-strength iron alloy with a copper-plated surface resists corrosion, heat, and long-term wear in demanding exhaust environments.
• Flange Clamping Support: The flange base spreads contact pressure across the joint to help resist loosening from vibration and thermal cycling.
• Exhaust Sealing Use: Precise threads help secure manifold studs, header joints, exhaust pipes, and muffler connections, supporting a tight connection and reduced leakage or noise.
• 30-Piece Maintenance Supply: Includes 30 compact hex flange nuts for repair, replacement, and spare use on cars and trucks requiring this standard size.