OZCO’s Ornamental Wood Ties (OWT) Timber Screws are a revolutionary product that will help you build like you mean it. OWT Timber Screws are pre-engineered to make building faster and easier. These heavy duty fasteners come in a wide range of sizes, from 1 ľ” all the way to a full 12”, perfect for any wood-to-wood project, no matter the size. There’s no pre-drilling required for these Timber Screws, and the coating ensures that the screw will penetrate the wood with ease and without splitting your wood. OWT Timber Screws feature a built in washer and a hex head of 3/8”, which means they are the same size as every screw and bolt in the OZCO line. OWT Timber Screws are far from ordinary, and are truly a building breakthrough.