Roofing Screws are available in different shapes and sizes to be used on the roofs of wood and metal. They are designed using high-grade material with chemical coating to protect them from the adverse environmental conditions and effects of dust, water, and wind. With zinc coating on them, they also ensure no rusting for years to come. These Roofing Screws are self-drilling roofing screws ideal for attaching roofs to the post frame in different roofing applications. They are also provided with a salt resistant base coating and a acid-resistant top coating.