Ram 2-5/16" Sleeve Lock Adjustable Coupler - 12,500 lb Capacity Ram sleeve lock couplers feature a cast coupler head that is distinguished form other manufactures.  Its symmetric, straight with two corners, and flat top shape allows for a self adjusting coupler head.  This will make coupling and uncouple easier.  Comes with a durable black powder coat finish.  All cast head couplers include all SAE required markings and are compliant to standard J684. Adjustable couplers come with standard grade 8 bolts with nuts and are setup for an industry standard 3" channel. • Fits 2-5/16" ball • Use in 3" C- Channel • Mounting hardware included • 12,500lb Capacity