Engineered for strength, durability, and simplicity. Made of hot-dipped galvanized steel. Stationary dock hardware is designed with 7/16" holes for 3/8" carriage bolts. Used to easily join sections of dock together or join a fixed ramp to the dock at varying angles. Hinge pin included. Measures 5-1/2"L x 5-1/4"H. Measures 5-1/2"L x 5-1/4"H | Stationary Dock Hardware Connector Hinge