The National Hardware N830-270 Corrosion Resistant Stainless Steel Door Hinges are a high-quality and durable home improvement product. Made of polished stainless steel, these 4-inch hinges are designed to withstand corrosion and ensure smooth operation of your door. With a sleek silver color and a manufacturer part number of N830-270, these door hinges are a perfect addition to any home or building. The hinges are lightweight at 0.52 lbs and easy to install, providing a secure and reliable function for your doors.