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Address: Siesco Valley Screw Products
#8 Williams Dr
Union, Missouri 63084
Phone: (636) 583-8514
Fax: (636) 583-8418

A Brief History

In both 1986 and 1988, we expanded our plant.

In 1988, we became Siesco Valley Screw Products, Inc.

In May of 1995, we moved into our new 17,500 square foot facility located at #8 Williams Drive in Union, Missouri.

ISO Certification

As part of our commitment to providing the absolute highest quality products possible we have recently updated our certification to ISO-9001:2015.



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