Benefits of Metal Roofing Screws
Originally many years ago metal panels were attached to post-frame structures with nails. This evolved into nails with washers to provide some degree of weather tightness. As installers looked to improve both the holding power and weather tightness of the attachment, threaded fasteners with sealing washers were developed specifically for panel to wood applications. Over the years the designs have improved to maximize the benefits - ease and speed of installation, holding power, pullout values, and corrosion resistance. The holding power or pullout strength of screws is substantially higher than any nails. Additionally, screws can be easily backed out if the need arises, a task not so simple with nails.
Metal to Metal Screws
Metal to Metal screws are available in different diameters and lengths. These metal roof fasteners are designed to fasten metal roof panels to structural metal. These fasteners have self-drilling tips that fasten quickly and easily. The attached washers create a tight seal with the metal roof to prevent moisture and other corrosive elements from damaging the screw shank and leaking into the structure.