When inserted, the flange of this insert eye end is flush with the outside of 3/4-inch OD tubing so it will not slide out. This internal eye end fits inside the tube then the tube is crimped where the indentation is (the insert eye end must be secured by means of a crimping tool or rivet). Use with deck mounting and angle hinges (found in our Boat Top Fittings section), used in the assembly of boat top frames like bimini tops and dodgers. Made from aluminum, this boat top fitting is lightweight and built for marine conditions. Use these bimini top caps as replacement parts or for a new project.