Coach Screws (Lag Screws / Lag Bolts) are heavy-duty fasteners designed for joining wood, timber, or composite materials to structural components. Installation involves drilling a pilot hole, inserting the screw, and driving it using a wrench or socket. The coarse threads bite into the material, creating a strong and secure mechanical connection.

Coach Screws are commonly used in timber construction, furniture assembly, decking, and heavy-duty carpentry applications. Available in materials such as stainless steel, mild steel, and galvanized steel, they provide excellent holding power, durability, and corrosion resistance for both indoor and outdoor use.