Using these Dagger-Lok wood screws is easy. Just pick the right size for your woodworking project. You don't need to pre-drill because of the Type 17 point. Simply drive the screw into the wood using a compatible driver bit. The flat head with nibs will prevent the screw from spinning and will self - countersink. When it comes to maintenance, keep the screws in a dry place to avoid rusting. Although the zinc finish offers some corrosion resistance, excessive moisture can still damage them. Also, don't use these screws in applications where extremely high strength is required as they are made of low - carbon steel.