1 / 1
Self-tapping roofing screws are specialized fasteners designed with a drilling tip that can tap its own thread as it is driven into metal or wood substrates, making pre-drilling unnecessary for many applications.
Polycarbonate roofing screws are specifically designed for securing plastic or polycarbonate sheets. They often feature larger washers or expansion clearance features to accommodate the thermal expansion and contraction of plastic panels without cracking them.
The rubber washers, usually made of EPDM, compress when the screw is tightened. This creates a watertight seal over the fastening hole, preventing water from leaking into the roof structure.
Screws designed for wood generally have sharper, deeper threads with a smaller point, whereas screws for metal substrates feature fine threads and a drill point (self-drilling) designed to cut through steel sheets easily.
Yes, color-matched roofing screws (such as green or black screws) are painted with a durable coating to match the color of your metal roof panels, providing a clean, seamless finish while offering additional corrosion protection.
