100 Sawtooth Picture Hangers No Nail - 1 3/4 Inch - Silver- Zinc 1/4" wide x 1 3/4" long. The prong or nail part goes 1/4" into wood. Steel Sawtooth with Zinc Plated Finish - silver - Made in the USA Self-attaching NO-Nail sawtooth hangers for wood frames. No additional hardware needed Installs quickly-an important advantage if you have a lot of frames to hang The hardened finish allows the hanger to be hammered in without bending