The L.H. Dottie SH100 Screw Hook is a round bend type of hook used for hanging chain when installing light fixtures. Sharp point bites into wood quickly and easily. Size: #10 x 2-1/16-inch length hook, 7/8-inch thread length, 9/16-inch hook opening, 0.16-inch wire diameter. Made of steel. Zinc plated finish. This listing is for a standard package containing 100 units.