Screws, bolts and nuts for toughest use

Quality system

The successfully installed quality management system, in accordance with DIN EN ISO 9001:2008, forms the basis of the WH customer and product-oriented operations. The certificate was awarded by the internationally accredited TÜV CERT.

The aim of the WH quality management system is to meet standards, fulfil customer needs, and our own quality criteria, through maximum reliability and consistency. And our quality system is fully integrated in all processes and work operations.

Applied to the WH philosophy, quality management primarily means:

  • quality organization
  • qualified staff and
  • qualified consultancy

In-depth knowledge, and continuous further education, aimed at achieving faultless production, make the WH workforce, masters of their profession.

Schrauben- und Mutternfabrik GmbH
Eisenstraße 3-5, 58135 Hagen
Phone +49 (0) 2331 98118‑0,
Fax 02331 98118‑180
kundenservice (at)

ISO 9001-LogoHighest Quality

We did not leave anything to chance. We live a certified quality management system according to ISO 9001.