The slotted pins defined in the DIN 1473 standard published by the German Institute for Standardization (DIN) have three longitudinal parallel grooves running the entire length of the pin, which expands the diameter of the full-length groove pin. The expanded diameter is pressed back to the nominal diameter when inserted into the straight hole. As the pin tries to expand to a larger diameter, the force against the wall of the hole tightens the fit. This creates holding power against shock and vibration.
Similarly, in the ISO 8740 standard published by the International Organization for Standardization (ISO), three evenly spaced grooves, made of steel or austenitic stainless steel, imprinted longitudinally on their outer surface, and a pilot to facilitate insertion, nominal diameter from 1,5 mm to 25 mm inclusive. , describes the characteristics of chamfered, full-length parallel splined pins (ISO 8740 Grooved pins - Chamfered full length parallel splined).
The requirements for full-length chamfered pins are contained in the DIN 1473 standard under the following headings:
Stainless steels can be divided into three groups: austenitic, ferritic and martensitic. Austenitic steel is by far the most common type (more than 90 percent of commercial fasteners). Steel groups and strength classes are indicated with four-digit letters and numbers as shown in the table in the standard. The DIN EN ISO 3506 standard contains the requirements for screws and nuts made of stainless steel.
The chamfered full length parallel grooved pins are suitable for a variety of fastening applications.
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 1473 standard, for full-length grooved pins and within the scope of ISO 8740 standard, chamfered full-length parallel It also provides testing services for threaded pins.