This universal copper lock nut is built to handle the extreme heat and vibration of engine and exhaust systems. With an 8 x 1.25mm thread size, it's ideal for secure, heat-resistant fastening across a wide range of vehicles and applications.

12mm Spanner/Socket size.

 Manufactured to OE specification (N90-085-001), this manifold copper nut ensures a tight, lasting hold. Sold individually, it's perfect for maintenance, repair, or replacement jobs where durability and reliability matter most.