What fastening techniques / screw connections are there?
Discover comprehensive information on all common fastening techniques and screw connections. From Whitworth pipe threads to milk pipe fittings – here you’ll find clear answers to your questions. For further inquiries, our support team will be happy to assist you.
FAQs
Here you will find answers to the most frequently asked questions about fastening techniques and screw connections. For more detailed information, our team will be happy to assist you personally.
Austenitic stainless steels are widely used in fastening technology and offer various levels of corrosion and temperature resistance. The designations (e.g. A2, A4) indicate the alloy composition and resistance class of the steel grades, with A4 having higher acid resistance due to additional molybdenum content. Further differences arise from stabilization with elements such as titanium or niobium, which improve resistance at elevated temperatures.
Connecting elements such as screws and nuts are marked for identification and quality assurance. The marking contains information about the material (e.g., stainless steel grades), the strength class, and, if applicable, the standard according to which the element was manufactured. These markings are important in selecting the appropriate connecting elements for specific applications and loads.
Whitworth pipe threads are widely used in industry and provide standardized thread profiles for pipe connections. This overview explains the various types of Whitworth threads, their areas of application, and compatibility. The standards ensure secure and accurate connections in piping systems.
This standard defines the dimensions and specifications for metric ISO threads, featuring a standardized flank angle of 60°. The associated thread tables contain data on pitch, minor diameter, and tapping drill size for a variety of thread sizes commonly used in international mechanical engineering and fastening technology.
The metric ISO fine thread has a lower pitch compared to the standard thread, which allows for higher self-locking and is therefore suitable for connections that should not loosen on their own. It is mainly used in precision engineering and in applications that require high precision. The thread table contains specific dimensions such as pitch, core diameter, and core hole diameter for various fine thread sizes.
This standard describes cylindrical Whitworth pipe threads with a flank angle of 55°, which include standardized dimensions for various thread sizes. They are commonly used in pipeline connection technology to ensure a secure and leak-free connection. The table on the detail page provides details on the core diameter and pitch for each thread size.
This standard describes conical Whitworth pipe threads with a flank angle of 55°, which are commonly used for pressure-tight connections in piping installation. The table on the detail page contains specific information on pitch and root diameter for various sizes.
This standard describes the dimensions and specifications for milk pipe fittings that have been specifically designed for the food industry. The table on the detail page contains diameters, core hole dimensions, and thread pitches for various nominal sizes to ensure a secure and hygienic connection in pipeline systems.
The NPT pipe thread is a self-sealing thread with a flank angle of 60°, used for pressure-tight connections in piping systems. The table on the detail page contains the dimensions for various NPT sizes, including pitch and core diameter, and provides a standardized solution for connections in fastening and pipeline technology.
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