This 2.875 inch serrated wheel lug stud with a 0.813 inch knurl diameter is a practical and durable solution for various wheel lug stud applications. Made from carbon steel with a black finish, it features a fine thread type and a 16 threads per inch design. With a 1.278 inch head diameter and a 0.744 inch thread diameter, this lug stud is available with left or right hand thread direction. Sold in a pack of 5, it meets SAE automotive industry standards for strength and hardness, and has undergone 72-hour salt spray testing for corrosion resistance.