Haddock Tool & Manufacturing Company

Haddock Tool and Manufacturing

“Since 1965—Quality Custom Washers.”


about us

My father started Haddock Tool Co. as a tool and die shop in his basement. Quality was always one of his main concerns. He often said to me, "I don't care if all you are doing is polishing door knobs, be the best door knob polisher in the business!". Almost 60 years later that is what we strive to do, quality products at affordable prices. My commitment to you as a customer is this: If I don't have what you want I will make it. If I can't make what you want I will try to connect you with someone who can. Thank you for your interest in our company.

John M Haddock

udae washer

Haddock's Exclusive Custom-Made USAE Hybrid Hardened Washers

Up to 36% larger and up to 37% thicker than standard hardened washers for greater strength.



Haddock Hardened Industrial Washers 

Maximize torque down Minimize breakdown
Bending under pressure = washer failure
...and can cost you a fortune!

Haddock Custom Square Steel Construction Washers

Today's building codes often require the use of square washers.

With our interchangeable tooling, we can produce exactly what you need with no or low tooling charge and rapid lead time.

Haddock Custom Steel Rectangular Washers

Rectangular washers are also produced on our interchangeable tooling, resulting in many combinations of length, width, thickness and diameter, and shape of holes.


Haddock washers are made in the USA!

 All products are shipped in plain boxes.

Copyright 2022

Haddock Tool & Manufacturing Company Inc.

917 East Railroad Street, Sandwich, IL 60552


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