When installing services like overhead air-conditioning ducts, lighting, or anything that requires medium to heavier-duty fastening to a masonry ceiling, you need high quality threaded rod. But it isn't just the product; you also need to partner with a supplier who understands All Things Fastening, for all applications. At Allfasteners, we understand engineering aspects such as tensile strength, thread spacings and which materials, finishes or coatings to use in different application and environments. This rod, also known as all-thread rod or threaded stud, is available in plain steel, stainless steel, carbon steel, zinc-plated and hot-dip galvanized B7 materials and finishes.