Thumb Latches were a traditional method for the latching of ledged and braced doors and are still a very popular choice today. Manufactured in Britain from 100% Cast Malleable Iron using traditional methods of production our Thumb Latches are available in a range of designs and sizes suitable for both internal and external applications. Finished in Antique Black Iron these Suffolk and Norfolk Thumb Latches will add an authentic Old English rustic charm to doors around the home. Did You Know?? On a Norfolk Latch the handle is fitted to a backplate independently of the thumbpiece. In the case of a Suffolk Latch, the thumbpiece passes through the upper part of the handle.