National Hardware 1-1/2 x 5/8 Corner Brace is designed to reinforce the inside of right angle corner joints, making it i for use in chests, screens, windows, furniture, and more. This corner brace features screw holes that are countersunk for a flush finish and is installed using #7 flat head screws. For wood screw applications, it is to drill a pilot hole with a 5/64" sized drill bit to ensure a secure fit and prevent splitting. This sturdy and reliable hardware piece provides added strength and durability to your woodworking projects, ensuring long-lasting support where it’s needed most. Model Number: N266-480