Compatible with both wooden and steel beams structures, Our hanger bolts are specifically designed for various metal roof profiles, including trapezoidal, zinc, corrugated, and sandwich panel roofs. Protea Bracket is mounted directly onto the crown of the trapezoidal sheet using stainless-capped screws (provided) or Bulb-Tite rivets (sold separately). It has been. Building a robust foundation bracket for photovoltaic panels is critical for ensuring the longevity and efficiency of solar installations. This guide explores practical methods, material choices, and industry best practices to help installers and DIY enthusiasts create durable mounting systems. Chat with supplier now for more details. Made from SUS 304 stainless steel, it offers superior corrosion resistance, waterproofing with an EPDM rubber seal, and adjustable height (150mm-300mm) for precise.