20pcs M8 copper exhaust manifold nuts M8 x 1.25, M8 exhaust turbo nuts for E30 A2001420072 11621711954

1. Quality Certification and Universal Compatibility: Nuts certified #A2001420072 with MPN code 1162171954, compatible with classic compact vehicles from the 1980s and 1990s, guaranteeing a precise fit and optimal performance.

2. High-Temperature Bimetallic Structure: Grade 10.9 treated carbon steel core coated with a pure copper anti-seize layer, resistant to extreme temperatures up to 450°C without welding or deformation.

3. Optimized Technical Dimensions for Secure Tightening: M8 × 1.25 mm metric thread with a 10 mm female bore, SW13 hexagonal head with milled edges to prevent rounding during removal.

4. Certified durability under severe conditions: resists intense vibration, chemical corrosion, and repeated thermal shock (-30°C to 450°C). 5. Complete kit for efficient maintenance: Supplied with 20 high-performance nuts, ideal for replacing manifold or exhaust system fasteners.