Corner Brace 1-1/2 By 5/8 By 0.08 Inch Zinc Plated Steel Bulk No Screws. Hole sizes fit Phillips Flat Screws sized #7. Drill a pilot hole with a 3/32 inches sized drill bit when using wood screws. Designed for chests, screens, windows, furniture, etc. Used for reinforcing inside of right angle corner joints. Screw holes are countersunk.