The G L Huyett Tinnerman Palnut Locknut is designed for screw size 3/8-18 with a 15/16-inch diameter and features 6 notches for enhanced grip. This locknut is engineered to prevent loosening due to vibration, making it ideal for high-stress applications in automotive and industrial settings. Its robust design ensures a secure fit, while the quality materials used in its construction provide long-lasting performance. This locknut complies with industry standards, ensuring compatibility with a variety of systems and applications.