Pop toggles work with various diameter sheet metal screws. They are ideal for anchoring into hollow base materials such as drywall. They are ideal for hanging electrical fixtures, drapery supports, bathroom/kitchen accessories, pictures, mirrors, and more. Pop toggles also hold strong in solid materials such as wood studs, concrete or block. The anchor is corrosion resistant, and a pre-drilled hole is required. Includes twenty (20) 5/8 in. anchors with #8 x 1-1/2 in. screws. Maximum working load for 5/8 in. drywall is 80 lbs.