as individual as your requirements
as individual as your requirements
Special screws for maximum precision
Individual screw solutions for special requirements
Special screws are non-standardized fasteners that are developed for specific applications and special requirements where standard parts are not sufficient. In contrast to DIN screws, these screws are characterized by individual designs and tailor-made properties. They meet special requirements in terms of geometry, load-bearing capacity and material properties. They are manufactured according to drawings, specifications or samples - for maximum accuracy of fit and reliable function.
Benefits and cost-effectiveness of special screws
Tailor-made screw solutions for maximum efficiency
Special screws enable optimum fit, functionality and performance. They help to improve product quality and reliability and are crucial for safety in complex assemblies.
Cost reduction through precision
Individually manufactured screws avoid unnecessary material costs as they are precisely matched to the application. This leads to a more efficient use of resources and reduces production costs.
In addition, replenishment is guaranteed - for continuous production without interruptions and minimized risks.
Contribution to process reliability
Special screws ensure precise connections, increase assembly efficiency and reduce downtime. Without these specially developed screws, many industrial processes would not be possible.
Production of special screws according to drawings - precision as standard
Customized designs
Every special screw is customized. Complex contours, special threads or special head geometries can be realized without any problems.
Manufacturing processes for complex special screws
- Hot and cold forming for high strength and cost-effectiveness
- Machining for precise contours and tight tolerances
- Combination of processes for demanding drawing parts
Technical possibilities
- Production of custom and special screws according to customer requirements (drawings, specifications or samples)
- Screw diameters: 4-80 mm, lengths up to 700 mm
- Quantities: 1 to 50,000 pieces
- Materials: standard and special materials
- Surface treatments: Zinc-nickel, galvanic coatings, special coatings
Our manufacturing processes at a glance
Special screws M10 and M12 made of stainless free-cutting steel 1.4305 (AISI 303) - precise CNC multi-spindle turned parts for mechanical engineering and automation.
Special screws made from various high-alloy nickel-based alloys produced by hot forming - hot forming saves material, increases strength due to the grain flow, facilitates the processing of difficult-to-machine nickel alloys and is significantly more economical in series production.
Variety of materials for every application
Standard and special materials for special screws and special screws
Various materials are used for special screws and special screws, depending on the specific requirements of the application. Commonly used materials include stainless steel, aluminum, titanium and special alloys. The choice of the right material depends on factors such as corrosion resistance, strength, weight and temperature resistance.
- High-strength steels for mechanical loads
- Stainless steel for corrosion resistance
- Special alloys for extreme conditions
Quality control and certificates
All materials for our special screws and special screws are processed in batches. Test reports and factory certificates (e.g. APZ 3.1) are available to ensure traceability and safety.
Materials Certificates
Surface treatment of special screws for maximum performance
Protection and functionality
- Galvanic coatings for corrosion protection
- Friction optimization for assembly processes
- Optical finishing for visible components
Selection according to area of application
The surface treatment is individually tailored to the requirements - from zinc-nickel to special coatings for aggressive environments.
Surface treatments in detail
Coated special screws with corrosion protection - for demanding applications in apparatus and pressure vessel construction.
Quality and reliability of special screws made in Germany
All special screws are manufactured in Germany - with state-of-the-art technology, strict quality standards and decades of experience. This guarantees short delivery times, high process reliability and consistently high product quality.
About Güldner - Quality for decades
Industries and areas of application
Special screws are used in numerous industries where maximum precision and reliability are required.
Discover industry solutions
Request for individual screw solutions
A structured inquiry process is available for drawing parts and special screws. Technical advice, feasibility checks and quotations are provided quickly and reliably.
We create connections - for your individual special screws
- Production of special screws according to customer specifications (drawings, specifications or samples)
- Production of special screws with diameters of 4 - 80 mm and lengths of up to 700 mm
- Production of complex special screws and special screws
- Production of quantities from 1 to 50,000 pieces
- Production of special screws from various materials and special materials
- Use of various coatings and surface treatments
Sonderschrauben Güldner GmbH & Co. KG collects and processes the personal data entered in the form in order to process the requested inquiry for you. Please note the marking of the mandatory fields on the forms. The legal basis for this processing of mandatory data is Art. 6 para. 1 lit. b GDPR, implementation of a pre-contractual measure. The processing of the data voluntarily provided by you is carried out on the basis of Art. 6 para. 1 lit. f GDPR. This permits processing that is necessary to safeguard our legitimate interests. Our legitimate interest is to have contact with you, our customers, to improve the quality of our advice and to be able to contact you more easily in the event of any queries. The data collected will only be stored by us for as long as is necessary to process your request and to contact you. It will then be deleted. Translated with DeepL.com (free version)
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