The Briggs and Stratton 703985 Screw is a chrome-colored fastening device with a 5/16-18 x 1/2 thread size. This screw is designed for use in lawn mowers and other outdoor equipment, and comes in a pack of one. With a product depth of 0.5 inches and a length of 0.75 inches, this screw is a reliable and durable component for keeping your lawn mower in top condition.