Parallel pins with internal thread, defined in the DIN 7979 standard published by the German Institute for Standardization (DIN), are non-hardened cylindrical pins with internal thread into which a removal tool can be screwed in to remove the pin. Vented and non-vented pull pins are produced. A vented internal threaded parallel pin has a small flat spot along the length of the pins to allow air to escape for easier installation in a blind hole. Non-vented pins, on the other hand, have no flat points and are typically used in through holes. These pins have an oversized tolerance that ensures a tight fit.
Similarly, the ISO 8733 standard published by the International Standards Organization (ISO) describes the characteristics of internal threaded parallel pins made of non-hardened steel and austenitic stainless steel, with nominal diameters from 6 mm to 50 mm (ISO 8733 Internal thread of non-hardened steel and austenitic stainless steel). threaded parallel pins).
Again, in the ISO 8735 standard published by the International Standards Organization (ISO), the properties of internal threaded parallel pins made of hardened or surface-hardened and martensitic stainless steel, with nominal diameters from 6 mm to 50 mm, are described (ISO 8735 Made of hardened steel and martensitic stainless steel). internal threaded parallel pins).
In the DIN 7979 standard, the requirements for parallel pins with internal thread are under the following headings:
Our organization, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, with its trained and expert staff and advanced technological equipment, within the scope of DIN 7979 standard, for internal threaded parallel pins, within the scope of ISO 8733 standard, non-hardened steel and austenitic stainless steel. It also provides testing services for parallel pins with internal thread in steel and for parallel pins with internal thread in hardened steel and martensitic stainless steel under the ISO 8735 standard.
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