Item Type: Sawtooth Picture Hangers Material: Carbon steel Purpose: Suitable for canvas, scutcheon, photo frame, photo, drawing board, painting, painting exhibition, fashion wall clock, digital title, wooden crafts, wooden pallet project, cross stitch, etc. Screw Size: Approx. 3 x 10mm / 0.1 x 0.4in Package List 100 x Sawtooth Picture Hangers 200 x Screw 1The screw structure is compact, easy for you to install, and can be used repeatedly 2The product support seamless nail, which will not damage the wall, very practical and convenient 3Hanging sawtooth hooks are easy to install, and the hardware is fixed with screws, helps a lot 4Excellent carbon steel material with high hardness and good wear resistance, strong and durable 5Suitable for canvas, scutcheon, photo frame, photo, drawing board, painting, painting exhibition, fashion wall clock, digital title, wooden crafts, wooden pallet project, cross stitch, etc.