Using these Daggerz drywall screws is easy. First, make sure you have a #2 Phillips screwdriver. When installing drywall on wood, just line up the screw with the spot you want to attach and start turning. The self - centering feature of the Phillips drive will help you get the screw in straight. As you turn, the coarse threads will grip the wood and drywall well. Remember, these screws are designed for drywall - to - wood applications, so don't use them for other purposes. For maintenance, keep them in a dry place to prevent rust. If they get dirty, you can wipe them with a dry cloth. But since they have a phosphate finish for corrosion resistance, they should last a long time if stored properly.