John Evans’ Sons, Inc.

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Lansdale, PA

John Evans’ Sons is the international leader in the design and manufacturing of constant force springs, constant force spring assemblies and variable force pusher springs. Custom design, in-house tooling and precision manufacturing, combined with a wide & varied stock spring selection allows us to serve a wide variety of high tech applications from military to medical and from the depths of the seas to aerospace.

Metal Stamping Power Pages

Eyelets

Eyelets

An eyelet is a metal, rubber, or plastic ring with flanges are used to strengthen or reinforce holes punched in thin fabrics. It is a smaller counterpart of a grommet that is bigger in size and used for more heavy duty materials...

Metal Stamping

Metal Stamping

Metal stamping is a coldworking process that transforms sheets of metal into specific, preset shapes. It uses specialized tooling which involves the stroke of the punch that brings conformational change to the metal sheet...

Metal Washers

Metal Washers

A metal washer is a small flat piece of metal that has a hole in the center and is used as a spacer, a method for absorbing shock, or distributing the load of a fastener. The hole in the middle of a metal washer allows for a bolt or screw to pass through...

Metal Cutting Services
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