Nail plates, also known as nail-on plates, are metal plates used to reinforce joints and connections between wooden structural elements in building construction. They are typically made of galvanized steel and are designed to be installed with nails, either by hand or with a nail gun. Nail plates are used in a variety of applications, including connecting timber joists and rafters, reinforcing trusses and beams, and securing framing members. They are often used in areas where structural elements intersect, such as at corners or where walls meet the roof. The primary function of nail plates is to add strength and rigidity to the connections between structural elements, preventing them from splitting or separating over time. Nail plates can also help to distribute loads more evenly across the joint, reducing stress and strain on individual elements. Nail plates come in a variety of sizes and shapes, and can be customized to fit specific applications. They are an important component in building construction, helping to ensure the safety and stability of the structure over time.