OZCO Ornamental Wood Ties (OWT) 1/4 in. x 1-3/4 in. OWT Timber Screws are a revolutionary product that will help you build like you mean it. OWT Timber Screws are specialty fasteners pre-engineered to make building faster and easier. These heavy-duty fasteners come in a wide range of sizes, from 1 ¾” 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.