In the DIN 6900 standard published by the German Standardization Institute (DIN), the requirements for various screw and washer groups are explained. Essentially, this standard consists of the following parts:
Similarly, the ISO 10644 standard published by the International Organization for Standards (ISO) describes the requirements for metric screw and flat washer assemblies made of coarse-threaded steel, including M2 to M12, with flat seating heads, specification classes up to (inclusive) 10.9, and washer hardness classes of 200 HV and 300 HV . Flat washers are fixed, meaning they are prevented from being removed and can rotate freely. The manufacture of screw and washer assemblies takes into account the material and manufacturing procedure of the screw and washer, as well as the assembly process of the components, to meet the specification requirements (Appendix A).
In screw and washer assemblies, the screws and washers are inextricably linked but can be rotated freely. In that respect, it doesn't matter if it's one, two or even three stamps. This screw and washer combination eliminates the need to pick up and grip flat parts, while also eliminating unnecessary time-consuming preparation and assembly activities during screw assembly.
Among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, within the scope of DIN 6900 standard, for screw and washer groups and within the scope of ISO 10644 standard, screw made of flat washer steel. and washer assemblies (200 HV and 300 HV washer hardness classes).
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
