The 5 hole - "T" flat plate is a strong, external fastening method offering a long-lasting connection. This flat plate creates a 90-degree angle between connecting profiles. The fastener is flush with the profiles, allowing for a larger clearance area. It requires no machining services, is easy to assemble, and can be reconfigured and reused. The suggested mounting hardware for the 5 hole - "T" flat plate can be found on the "Suggested Hardware" tab. Tip: Use double or triple slide-in economy T-nuts to save time and money. Pre-load your hardware prior to connecting profiles to simplify your assembly.