National Hardware 3/4" x 1/2" Corner Brace is designed to reinforce inside right angle corner joints, making it i for use in chests, screens, windows, furniture, and more. This sturdy corner brace features countersunk screw holes and is installed using #7 flat head screws. For optimal results when using wood screws, it is to drill a pilot hole with a 5/64" sized drill bit. This product ensures reliable support and durability for your woodworking and repair projects. Model Number: N266-478