Another feature is the shank of the Decking Screw. The first kind is a Decking Screw with smooth shanks to create a better drive in experience. The second kind, which is on Composite Board Screws, is with a reversed thread to make it harder to pull out or loose grip while fastened in decks. Corrosion resistance is the most important feature of a Decking Screw. Some different materials, such as ceramic-coated, stainless steel, or copper are utilized to purposely resist corrosion.