Deck screws are a type of self tapping screw designed typically to join pieces of treated lumber. Wood deck screws normally have a bugle or flat countersunk head that provides a smooth, finished surface, spaced threads, and an extra sharp point. The square drive recess is commonly preferred over the phillips because of its excellent torque transmission and resistance to cam-out problems. Stainless steel wood deck screws provide corrosion-resistance twice as long as standard dacrotized steel screws and are usually chosen for outdoor construction projects. AFT Fasteners carries a large selection of steel and stainless steel deck screws with only a few sizes listed online. If you can’t find a particular deck screw, please contact us – our knowledgeable sales team is available to help.