This is Wavetrac N.M12.150.24 BMW M12X1.5X24 Ring Gear Bolt.
The Wavetrac Differential are built in American plants operating ISO9002 standards and brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs.
Our gear package is smaller, reducing overall mass, yet is more durable since particular attention was paid to the tooth strength - optimized for high torque conditions.
Each Wavetrac Differential is crafted from the highest quality materials available. The internal gears are made from high strength 9310 alloy steel. The differential bodies are machined from case-hardened 8620 steel forgings or billet.
To complete the package, every Wavetrac differential is built exclusively using high quality, high strength fasteners from ARP, the world leader in fastener technology.