Fasteners and parts made to drawing from Velbert.
Associated NORM+DREH GmbH, founded in Velbert in 1973, is family-run in the third generation and brings more than 50 years of industry experience. We take care of everything between your inquiry and your goods receipt.

NORM+DREH
We have grown from a pure specialist dealer in fastening parts into an innovative full-service supplier to industry worldwide.
What you can rely on with us.
Four things you can measure us by: experience since 1973, the right manufacturing route for your component, a complaint rate below 1% and a dedicated contact person.
More than 50 years of industry experience means: we have been buying and selling fasteners since 1973, and in that time we have seen just about every screw, every bottleneck and every standard. You notice it on the phone, because we ask the right questions before we write a quotation.
A family business with credentials.
Associated NORM+DREH GmbH, Mettmanner Str. 125b, Velbert, HRB 17798 at the Local Court of Wuppertal (Amtsgericht Wuppertal). We have owned the site since 1991. Certified to DIN EN ISO 9001 and 14001 by TÜV NORD CERT GmbH in Essen, member of Schlüsselregion e.V.
For your supplier file, we provide on request a test report, an inspection certificate 3.1 to DIN EN 10204 and an initial sample inspection report (ISIR). We will gladly arrange a date for your supplier audit.

A person instead of a hotline.
From the first call to delivery, you deal with the same contact person in technical sales. If a colleague answers first, they will put you straight through to them.
The structure behind this is flat and decision paths are short. Your contact person reads the tolerances on your drawing personally and tells you early on what is feasible. The managing directors are Timo, Mark and Thomas Waldhoff.
This is what delivery reliability means to us: we keep our deadlines, and if one is at risk, you hear it from us before you have to ask.

Goods flow continuously from the partner plants to Velbert.
50+ years
Fastening technology since 1973
ISO 9001
ISO 9001 and 14001 certified
below 1%
Complaint rate on 2025 orders
100%
Optical camera inspection on request
In Velbert since 1973, now in the third generation.
Hans Günter Knapp founds NORM + DREH H.G. KNAPP KG
Velbert manufacturer Hans Günter Knapp produces precision turned parts and notices that his customers need matching fasteners. He founds NORM + DREH H.G. KNAPP KG, clears a corner of his factory as a warehouse and hires the first staff for sales, purchasing and administration. Then as now, the name says what it is about: standard parts and turned parts from the same supplier.
First move, the Waldhoff family comes on board
NORM+DREH and the turned parts factory move into a new building with sufficient warehouse and office space. In the same year, authorised officer Alfons Waldhoff and his wife buy the first company shares. This marks the beginning of what defines the company to this day: a family business in which the owners themselves work in day-to-day operations.
All company shares in family hands
Business keeps growing even in weaker economic years, and the number of customers multiplies. The Waldhoff family takes over all company shares, and the company now belongs entirely to the family. With the sons Thomas and Klaus Waldhoff, the second generation joins as partners.
Own warehouse on a 6,000 square metre site
Business grows faster than the shelves. In the neighbourhood, NORM+DREH buys a 6,000 square metre plot and builds the warehouse on it from which we still deliver today. Space for further growth is secured on site.
Certification to ISO 9001
In 1992, Thomas and Klaus Waldhoff found a sales GmbH alongside the KG for active selling and introduce an in-house quality assurance system. It grows with the company, and in 2004 the quality management system is certified to ISO 9001. NORM+DREH is established as a preferred supplier with several customers. Some customer relationships have continued for over 30 years with deliveries every year. In 1999, the new administration building stands next to the warehouse, and Werner Nachtigall is the first employee to celebrate 25 years with the company.
Renamed Associated NORM+DREH GmbH
With a view to international business relationships, the company is given a new name: Associated NORM+DREH GmbH. The new company name also supports closer cooperation with other medium-sized companies. A year earlier, the company increased its warehouse capacity with converted and extended shelving.
Environmental management to DIN EN ISO 14001
The environmental management system is certified to DIN EN ISO 14001. In the same year, the company expands its home office connectivity so that sales and purchasing can work from anywhere, and grows despite the pandemic. At the end of the year, Werner Nachtigall and Harry Freund retire after a combined total of more than 80 years at NORM+DREH.
Fifty years of NORM+DREH, the third generation takes over
Current and former employees celebrate the 50th company anniversary together. On 1 July 2023, Timo and Mark Waldhoff take over as managing directors, with a combined 25 years of experience in the company. Thomas Waldhoff remains in the operational business as managing partner, Klaus Waldhoff as partner. The company is family-run in the third generation, and its location is still Velbert today.
Documenting batches
New back-office structures free up more time in sales for customer development and technical advice. The current version of Microsoft Dynamics 365 Business Central is integrated as an established ERP system, with improved batch traceability, synchronisation across departments and real-time access, including via an app. Every goods receipt is photographed in the warehouse using a tablet. The documentation is updated daily, allowing the entire team to view items and batches regardless of location. Images supplement standard dimensional checks and make it easier to trace surface conditions and visual assessments for individual batches.
Optical measurement
Inspection equipment expanded with a modern KEYENCE measurement system for optical 2D and 3D measurements and microscopic viewing with a large depth of field. Further integration of AI into day-to-day operations. The complaint rate continued to be kept below 1%. Despite a challenging economic environment, particularly in German industry, the financial year ended with a positive financial result.
AI at the workplace
AI tools now support almost every workstation, particularly in purchasing, sales and quality assurance. Connecting the ERP system with AI speeds up information and communication processes. Hagen Richters joins the Velbert location as a full-time sales assistant.