Deltana has a proven record for exceptional service and quality and is the architectural hardware manufacturer with the largest inventory selection of architectural and door hardware in America. With an array of fine finishes, finding hinges, bolts, bumpers and stops, ball catches, roller latches, door accessories, and home accessories that complement your home's decor. Deltana hinge pin door stops are designed to install on an existing hinge to restrict how far a door will swing open.