- Standard parts
Standard parts are machanical fasteners that geometric and technical requirements are characterised by national (DIN, BS, ASTM and other), european (EN) or international (ISO) standards even if the actual needed dimension is out of the range that is defined by the mentioned standards. The same it is for differing materials, accuracy classes, surfaces or other specifications. - Special parts
Special parts are screws and other threaded and component parts that have to be produced according to drawings, samples or individual designation of the client. Meanwhile special parts are also more and more standard parts that are especially in the qualitative specification high above the normative requirements.
