Left hand/reverse thread direction;9/16 inch through-hole size;3/4 inch -16tpi Chromoly rod end with 3/4 inch bore;The mounting width with the spacer is 1.75 inch with a 9/16 inch hole; California Residents: WARNING Great for the builder on a budget. These rod ends from Midwest Control Products Corp are a great way to add strength, reliability, and flexibility to any situation that requires use of a rod end such as in suspension or steering applications. The -12 series utilizes a high strength Chromoly body with a polished chrome finish sure to impress. The ball is made from heat treated bearing steel for strength and hard chrome polished for a smooth surface. The race is injection molded nylon which keeps the joint quiet and tight for years and years of usability.