Usines de vis  Producteurs, Vendeurs, Fournisseurs

Depuis 1999, YZB n'a cessé d'améliorer la technologie et la qualité de ses produits, en investissant des ressources massives dans le développement de produits, pour devenir une entreprise diversifiée de fournisseurs de services de fabrication. Nous poursuivons également un processus de production et des services de haut niveau et cohérents. Pendant ce temps, nous sommes à l'écoute des besoins de nos partenaires dans le monde entier.
YZB est qualifié par la norme ISO 9001.

OTTO BERGFELD is a metal working and screw factory located in Plettenberg.
Our name stands for more than 60 years for highest quality, flexibility and reliability in all manufacturing processes. We offer a wide range of cold and hot forming forgings. From eyebolts, clamp nuts to special designs according to your drawings or samples. We process all common materials and manufacture small and large series. We will also find a specific solution for your particular request.

Die Simetall GmbH ist Hersteller von Anlasserzahnkränzen.
DDes weiteren beschäftigen wir uns mit der Zerspanung von Großserien.

Sonderschrauben GÜLDNER - Your specialist for special screws and fastenersFor more than 42 years, the name Sonderschrauben GÜLDNER, part of the internationally successful Würth Group, has stood for highest precision, quality and reliability in the production of special screws, CNC turning and milling parts and customer-specific fasteners. The company specializes in fastening solutions for technically challenging applications - individually manufactured according to drawing or specific requirements.


The product range includes, among others:

• Cap screws
• Nuts
• Extruded parts
• Expansion bolts
• Stud bolts
• Forged parts
• Tie rods
• Sleeves
• Special screws
• Turned parts (precision turned parts, long turned parts)
• Milled parts
• Threaded rods
• Grub screws

Sonderschrauben Güldner processes a wide range of materials - from heat-resistant and acid-resistant alloys to hardened and tempered steels.


The products are used worldwide in:

• Machine and plant construction
• Pressure vessel and apparatus construction
• Chemical and petrochemical industry
• Environmental and energy technology
• Aerospace
• Motor sports
• Vehicle construction and automotive
• Other branches of industry

To ensure the highest quality standards, Sonderschrauben Güldner offers comprehensive testing procedures such as ultrasonic testing (UT), surface crack testing (MT, PT), tensile and notch impact tests as well as hardness and dimensional tests. On request, we supply with acceptance test certificates in accordance with EN 10204 / 3.1, 3.2 as well as TÜV, ABS, BV, DNV, LR and other classification societies.
Sonderschrauben GÜLDNER – Your expert [s]crew!
Fastening solutions with a system – individual, flexible and reliable.