The Dock Edge DockHinge is the most innovative dock coupler ever. DockHinge is a premium, patented coupling solution that will set you apart from the competition. Its unique features mean less servicing and quicker installs. EASIER• Self-contained â never drop or lose a pin again• Self-supporting so it's easy for dock owners to set-up and take-down their own docks• Self-aligning hinge functions from above â one 3/4" socket secures in secondsQUIETER• Patented bushing system means no metal-on-metal squeaking• Wide range of motion allows for fluctuating water levels and wave action with less noiseSAFER• Standard mounting pattern with 1/2" carriage bolt set• Easy to install and align• Works with existing corner brackets, backing plates, and hardware• Safer for dock builders and owners â carries heavy loads and no fingers between heavy docks Self-aligning hinge functions from above Patented bushing system means no metal-on-metal squeaking Standard mounting pattern with 1/2"" carriage bolt set | Dock Edge DockHinge, 5/8" Plate for 1/2" Hardware