CORROSION-FREE COMPOSITE FASTENERS for use with Honeycomb Sandwich Panel Molded from high strength thermoplastic "Torlon®" General Description Honeycomb sandwich panels are widely used from aerospace to recreation.They are found in transportation vehicles on land, from cars and trucks to high-speed trains. By sea, they can be found from fast ferries to giant ships.Widely used in partitions, ceilings, and floors, honeycomb panels replace sheets of plywood and metal in nearly every application of nearly every industry. Anywhere these panels are used, you will find inserts that fasten the panels together or to a structure of some kind. Lighter weight, completely non-corrosive, and less expensive than the old style metal inserts, AEP offers the world's largest selection of composite inserts, with a product line that is unmatched in the industry.