When to Use Stainless Steel vs. Galvanized Zinc Screws for,
The Strength of HDG Zinc. Hot-dipped galvanized zinc metal alloy screws (boy that is a mouth full) have a tensile strength of 62,000 PSI, since they are grade 2 bolts. There are, however, more expensive versions of zinc bolts such as grade 5 and grade 8 that are common. Grade 5 has a max threshold of 120,000 while grade 8 tops out at 150,000.Architectural metals - Wikipedia,The first extensive use of aluminum in construction was the Empire State Building, where the entire tower portion is aluminum, as well as many decorative features, such as the entrances, elevator doors, ornamental trim, and some 6,000 window spandrels. Today, aluminum is used frequently in construction except major structural members.ZINC. International Zinc Association,,Due to their intrinsic properties, metals are widely used in the building and construction sector. Zinc sheet and zinc-coated steel sheet are excellent materials for cladding, roofing, window frames, rain-water collection systems, heating equipment and counter tops.