Under the Roof Decorating Deco Nail Large Head Sampler Pack Steel, Plastic Unique nail head design prevents hardware from sliding off Comes in two different head sizes to fit all picture hanging hardware such as picture wire, sawtooth hooks, D-rings and keyhole hangers Supports up to 20 lbs Spiral shank (much like a screw) increases the holding strength of the nail Perfect for hanging pictures, mirrors, clocks and other wall decor