Reinforces right angle corner joints. Screw holes are staggered in 5 in and larger. Corner Brace 10 By 1-1/4 By 0.25 Inch Zinc Plated Steel Bulk No Screws. Hole sizes fit Phillips Flat Screws sized #12. Drill a pilot hole with a 1/8 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.