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Made In America since 1946

(563) 583-2770

We Never Stop Looking at How We Do Business.

At DSP, we tirelessly work to improve the quality of our products, documentation and processes. It’s who we are and it will continue to define our approach moving forward. As part of that commitment, we began building and implementing a Quality Management System. We are proud to announce that as of February 14, 2017 we are ISO 9001:2015 certified. Serving you better will always be our number one goal. You can count on it. 

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I work with over 50 vendors/suppliers as a buyer for GE.
Dubuque Screw Products is by far the best one to work with.
I never have to worry about quality issues because we never have any with them. Always prompt to get with you when placing order or if you are just asking a question. Always willing to go the extra mile for you. They are a A+ business to work with and you will not be sorry doing business with them.

- Buyer, General Electric,

What our customers say