Simply slide these collars onto a shaft and tighten the set screw to hold the collar in place. Collars are easy to adjust with their set screws. Made of T303 stainless steel which provides excellent 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.