Since being founded in 1850, John Hassall continues to be recognized as one of the foremost sources of custom designed metal parts & fasteners. We at John Hassall are committed to producing parts and services that consistently exceed the most demanding expectations of our customers.

Our Facility combines state-of-the-art technology with a team of dedicated professionals, including many long-term employees with decades of experience and know-how in making custom-formed parts. Our people, processes and practices are all quality focused, earning us third party certifications from ISO 9001:2015, AS9100D,and NADCAP.

Our Capabilities

Aerospace & Defense

John Hassall supplies pins, rivets, bushings and high strength bolts used in the world’s leading aircraft engines. These applications call for materials which are extremely difficult to form and machine and require unique custom manufacturing capabilities.


Leading automobile manufacturers and their suppliers rely on John Hassall parts to ensure maximum safety and reliability under challenging environmental conditions.


John Hassall parts can be found virtually everywhere, in a wide variety of commercial applications such as — hand tools, commercial and residential locks, toys, batteries, apparel, paint brushes, instruments, electronic devices, appliances, thermostatic controls, plastic insert molded parts, electric motors, etc.


John Hassall’s formed and machined parts provide superior performance in a variety of applications requiring miniature metal parts.


Hassall is an ISO 9001:2008 / AAS 9100 certified manufacturer of custom nails, pins, rivets, screws and bolts in stainless steel, monel, silicon bronze, copper and more.


Hassall is an ISO 9001:2008 / AAS 9100 certified manufacturer of metric and standard threaded fasteners, rivets, cold formed inserts & hubs, as well as machined parts in stainless steel, cobalt based alloys, titanium and more.