About Simmonds (Alcoa)

Simmonds (an Alcoa brand) is famed for inventing and manufacturing the first nylon ring self-locking nuts. Utilizing cold forging and screw machining Simmonds continues to produce innovative nuts that meet the most demanding application requirements. Simmonds specializes in manufacturing custom nuts but does offer a variety of standard nuts including NYLSTOP self-locking nuts, ESN type slotted nuts, DAH type slotted nuts, MHT series self-locking nuts, PH series self-locking nuts, and DHE series self-locking nuts. bisco industries is a premier Simmonds distributor. Search or browse Simmonds (Alcoa) self-locking nuts now!