OZCO Ornamental Wood Ties (OWT) Timber Screws are pre-engineered to make building faster and easier. These heavy duty fasteners come in a wide range of sizes, from 1-3/4” 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 penetrates wood without splitting. OWT Timber Screws feature a built-in washer and a hex head of 3/8”, the same standard size of every screw and bolt in the OZCO line.