Welcome to Lock & Hinge, a division of Real Metropolitan Hardware. Real Metropolitan has been providing commercial, residential, and builders’ hardware to some of New York City's finest interior decorators, builders, and contractors for more then 55 years. After so many years in this line we got a working relationship with some top architects and designers and built up an extensive knowledge of residential and commercial hardware, which is why architects and builders come to us for advice and to purchase door and builders hardware.