Press Fit Corrosion Free Composite Inserts

There are two basic styles of composite inserts for honeycomb sandwich panels, press-fit / adhesive bonded versus potted-in (NAS) style. The press-fit / adhesive bonded style inserts are commonly referred to as "Floor Panel Inserts" because they are widely used in aircraft flooring to fasten the panels to the aircraft structure. However, they can be used anywhere a through hole fastener is desired, where very high load carrying capabilities are considered necessary and insert protrusion out of the panel is not a problem. In other words, the flanges of a press-fit / adhesive bonded Torlon insert are glued to the top and bottom skins of the panel and are therefore not considered "flush" with the panel skins. In the figure below, the top flange incorporates a beveled edge, providing for a very low profile insert. A hole is drilled through the panel and the insert is placed into the hole where the plug and sleeve are pressed together. The flanges of the inserts are glued to the panel skin, providing a fixed through hole in the panel. Each insert is capable of carrying over a 2,000-lb load, depending on the panel type.

Unique Styles

AEP offers many different sizes of press-fit inserts to suit many different needs. Our standard press-fit insert requires a 7/16" hole to be drilled in the panel and it has a 7/8" diameter flange that will be glued to the panel skin.

Drawings now available in PDFs:

Read more about the benefits of using Torlon composite honeycomb panel fasteners and Torlon’s industry approvals.  Contact Marketing Masters to request a quote on composite fasteners for your industry and applications.  We also make Torlon clip nuts for a variety of industries, including aerospace and automotive