1/2" .500" Rod End Heim Joint Includes 1-left hand thread and 1-Right Hand thread Heim set. Jam nut included. 1/2” 20tpi Thread 1/2" bolt hole (Grade 8 or better recommended) 1-piece design Heat Treated steel Never needs grease 16,000 Pound static load rating Male thread Thread length 1.5" These XMR heim joints are the best you can buy. They are heat treated and hard chrome plated to give you a better finish for longer. The race is teflon impregnated nylon for superior durability. These rod ends have a 1/2"” Shaft with 20tpi. The 1/2” bore is the strongest way to make this heim. The included jam nut is zinc coated for superior durability. These HeimJoints.net joints are the strongest available for your rock crawler Jeep Toyota Buggy or any project you may be building. Common uses are steering joints and link joints on hot rods drag racing 4-link lowrider or custom builds.