Plumbers tape, also known as hanger iron or perforated strap, is a flexible, perforated metal strip commonly used in plumbing, HVAC, and construction applications to secure, hang, and support pipes, ducts, and other materials. Despite its name, plumbers tape is not adhesive; instead, its perforations allow for easy fastening with screws, nails, or bolts, making it a versatile and indispensable tool for professional contractors and DIY enthusiasts alike.