Use Scotch Extremely Strong Mounting Tape instead of nails or screws. It is designed for your toughest jobs. Equipped with powerful, permanent adhesive, this double-sided tape defies gravity, holding up to 20 lb. Weather-resistant tape delivers a long-lasting bond - indoors and outdoors. Use on finished/painted surfaces, metal, tile, laminate, plastic and more. Apply at temperatures between 50 to 100 degrees Fahrenheit. Ensure your surface is smooth, clean and dry for the best bond. Do not use on drywall or items that are more than 3/4" thick.