Screw Parts  Manufacturers, Traders, Suppliers

Since 1999 YZB have continuously improved on technology and the quality of our products, invested massive resources in product development, moving toward becoming a diversified company of manufacturing service provider. We also pursue high standard and consistent production process and services. Meanwhile, we listen to our partners' needs around the world.
YZB is qualified with ISO 9001.

Poland Tokai Okaya Manufacturing Sp. z o.o. ist in der Metalbranch taetig und liefert auf den Markt hochklassige gestanzte Elemente: Bauteile fuer die Automotive-Branche, Haushaltswarenbranche, erneuerbare Energie sowie Paneele und Komponente fuer LCD-Fernseher.
PTO bietet auch Dienstleistungen im Bereich Buckelschweissen, Punktschweissen, Gewindeschneiden, Reinigung und Montage.
Wir haben eigenes Labor und Werkzeugabteilung.

For 50 years we have been producing linking elements such as bolts, clevises, clevis joints, angle joints, rod ends and retainers and selling them around the world.
As well as these standard components, we produce precision turned parts with great efficiency. Cutting-edge production methods, complete monitoring of the production processes and a comprehensive service package ensure outstanding quality.
This high quality standard is the result of a consistently applied quality policy certified to ISO 9001:2008.
Our friendly and well-trained team will be pleased to deal with your needs and requirements.

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.