●Specifications: Outer Dia.: 12mm/0.47";Inner Dia. : 5.9mm/0.23";Thickness (t): 1mm/0.04" ●Material: Made of Carbon steel, Surface treatment: Blackening. providing good resistance to corrosion and high temperature. ●Features: The spring metal clip features 3 prongs that give it an E shape which fits in a groove on the metal shaft assembly. ●Application: These E-Clips are retaining rings that fit into a machined groove of a shaft to secure items. ●Application: E-Clip Circlip uses for appliance repairs, bearing, gears, pulleys, and various repair projects.