Socket Head Cap Screws

Socket Head Cap Screws – Standard and Custom Designs Directly from the Manufacturer

As an experienced manufacturer and supplier, we offer a wide range of socket head cap screws – available for short-term delivery or as custom-made products according to drawing.

Our fasteners impress with accuracy, strength and tested quality.

Buy socket head cap screws from ASO Schrauben

We offer a wide range of socket head cap screws with various thread and standard designs.

Technical options:

With socket drive, flat head, or countersunk
Manufactured according to DIN ISO 4762, DIN 912, or special drawing
Available in steel 8.8, 10.9, stainless steel A2/A4, or other materials
Customized lengths and surfaces on request

Socket head cap screws with socket drive (according to DIN ISO 4762 or DIN 912) enable easy and secure fastening with an Allen key – ideal for precise applications in machine housings, engines, or electrical engineering. Versions with a flat head or special countersunk head are also available.

Planning reliability

We guarantee that delivery dates will be met according to the order confirmation, so that you can implement your projects reliably and without delays.

Flexibility

Our offer and service include express service, short-term changes to ongoing orders, and fast delivery times even during peak periods.

Experience

Our many years of experience enable the reliable and individual production of connecting parts – even in very small quantities.

Tested Quality

We use certified EU pre-material with certificate allocation, so that you can rely on tested quality and maximum safety.

Versatile socket head cap screws

Socket head cap screws with socket drive are among the most frequently used fasteners in mechanical engineering and vehicle construction. With their characteristic flat, cylindrical screw head and optional socket drive, they can be flush-mounted into components and enable a precise, friction-locked connection, even in confined spaces.

At ASO Schrauben, you receive high-quality socket head cap screws in accordance with standards, available in numerous dimensions, materials, and strength classes.

Materials & Surfaces for the highest demands of socket head cap screws

The selection of the correct material is crucial for the performance and service life of a socket head cap screw. Depending on the application, different metallic materials are used. Our socket head cap screws are available in various materials and coatings:

Steel plain / galvanized – cost-efficient & proven

Stainless steel A2 (V2A) / A4 (V4A) – for particularly humid, salty or aggressive environments

Black special screws – galvanically galvanized, burnished or phosphated

Special materials – e.g. heat-resistant steels or duplex steels

You can find an overview of all available materials on our separate material page

Specialist for special fasteners in pressure equipment construction

We offer you reliability in safety-critical applications.

A particular focus of ASO Schrauben is, among other things, the production of special fasteners for pressure equipment. Our connecting elements are used wherever maximum safety, material quality and manufacturing precision are required – for example in pressure vessels, flange connections, heat exchangers, valves or steam systems, in turbine construction and in classic mechanical engineering.

Thanks to many years of experience and modern manufacturing technologies, we produce screws according to drawings or special standard specifications – even from a quantity of 1!

Our production meets the strict requirements of the Pressure Equipment Directive (PED 2014/68/EU) and relevant regulations such as AD 2000-Merkblatt W0. The corresponding certificates (e.g. 3.1 / 3.2 according to EN 10204) document the quality and traceability of our products – a clear added value for safety-critical applications.

Advantages of a socket head cap screw from ASO Schrauben

Good to know: Socket head cap screws in detail

Socket head cap screws are special screws that ensure a stable connection of components. They are available in various designs, for example, as socket head cap screws with socket drive or with a flat head. The correct size, such as an M12 socket head cap screw or an M30 socket head cap screw, as well as adhering to the recommended tightening torque, ensure that the connection lasts permanently. Standard-compliant variants, such as the DIN socket head cap screw, guarantee safety and quality.

The correct tightening torque of a socket head cap screw is crucial for permanent preload and reliable function. Factors such as thread size, friction coefficients, strength class, and lubrication play an important role.

We manufacture everything for you - whether according to European or international standard!

Our screws are used where standard solutions do not fit – for example, under high pressure, extreme temperatures, or aggressive media. Special screws made from special TÜV-certified raw material are often the only solution in the industry to reliably implement complex, safety-relevant applications.

At ASO Schrauben, the perfect connection is our focus – not only technically, but also in cooperation with our customers. With individual solutions and high quality, we support your projects precisely.

Mathias Koll

Managing Director ASO Schrauben

Application areas of our socket head cap screws

Mechanical engineering (e.g., for housing connections, machine components)
Vehicle construction (engine fastenings, chassis components)
Electrical engineering and apparatus construction
Plant and apparatus construction
Tool and mold making
Precision mechanics and precision devices
Robotics and automation technology
Constructions with confined spaces (due to socket drive)
Applications with high dynamic loads (in combination with high-strength steel)
Fastenings with a visually clean screw pattern due to the flat screw head

Our other types of fasteners

Special fasteners and custom screws can be designed in very different designs and functional types. Our common screw types include, among others, stud bolts, threaded rods, and studs, which are frequently used in pressure equipment or flange connections. Further variants include hexagon head screws, eye bolts, or special screws with specific thread forms. By combining different head shapes, thread types, and materials, highly specialized fasteners are created, precisely tailored to your requirements.

Strong Connections since 1948

As a manufacturer of special fasteners and connecting parts according to standards, we manufacture precisely, certified and according to your individual specifications

Request now without obligation