National Hardware 3" x 3" Zinc T-Plate (2-Pack) is designed to securely join two pieces of wood at a 90-degree angle, making it i for screens and frames. This T-plate features countersunk screw holes for a flush finish and requires a 3/32 inch pilot hole when using wood screws. Crafted from durable hot-rolled steel and zinc-plated for corrosion resistance, it ensures long-lasting strength and reliability in your woodworking projects. Model Number: N113-704