Our two piece clamp-on shaft collars are similar to the one-piece collars as far as how they work. Two piece clamp on collars come apart in two halves for easy installation and maintenance They promise not to mar the shaft. They clamp evenly around the shaft therefore providing excellent holding power. Made of carbon steel with a Black-Oxide finish to offer mild corrosion resistance. Our shaft collars are available in several different styles to meet you or your customer's needs. Climax Metal Products Co. in business for over 60 years is the leading manufacturer of shaft collars, rigid couplings & keyless locking assemblies. Climax Metals, where fair market pricing and excellent customer service is our promise to you.