This pack of 25 0.72 inch standard wheel nuts with 32mm hex is made of carbon steel, meeting SAE automotive standards for strength and durability. The lug nuts have undergone industry-standard proof load testing to ensure strength and have been corrosion tested for 72 hours to simulate three years of corrosion resistance. With a 0.7 inch thread diameter, coarse thread type, and right-hand thread direction, these nuts fit most wheel lug stud applications. The nuts have a silver finish, 0.72 inch depth, 1.4 inch width, and 0.72 inch overall length, making them practical and easy to use.