Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology. Whether you need a gate hinge for a traditional or modern, wood or vinyl gate, we have you covered. Hinges come in durable and popular metal finishes and the revolutionary polymer technology that is an optimal solution for gates in high corrosion susceptible areas such as pools. Smooth black finish with excellent corrosion resistance because they are triple-protected with zinc-plate, black finish chromate dip and black finish baked on enamel finish.