Quality Assurance


ETTINGER sets new standards in quality assurance

The highest quality requirements, skilled employees, and investment in new technologies make ETTINGER a reliable supplier of mechanical fastening elements and electromechanical and electronic components. All products are subject to strict incoming goods inspections in order to ensure consistently high standards in the quality of our products. This applies both to products manufactured in-house and to all bought-in parts.

Naturally, we work in accordance with the specifications of international standards and guidelines:

  • EU Directive 2015/863/EU (RoHS III)
  • REACH / SVHC list
  • Conflict minerals: Dodd-Frank Act


To determine material compositions in the case of metals as well as in the case of plastics, substances, and plating thicknesses, we use a Fischerscope XDV-SDD X-ray fluorescence measuring system in accordance with DIN EN ISO 3497:2000 as part of our quality assurance practices. The measuring instrument is used to scan components in three axes as part of the incoming inspection process. As well as verifying adherence to environmental standards (e.g. RoHS) in respect of critical substances, the X-ray system enables us to check the layer thicknesses of metal parts with surface treatment with maximum precision.

To check dimensions within the scope of the general tolerances according to ISO 2768-1:1991-06 and to verify thread dimensions and thread tolerances according to DIN ISO 965-1 and DIN ISO 965-2:1999-11 (formerly DIN 13-13:1983-10), we use conventional test equipment, which undergoes regular inspections.  

Although it is intended that each mechanical fastener will meet all the requirements of the relevant product standard, this is not always possible, particularly in the case of large-scale production. For this reason, the DIN EN ISO 3269:2000 standard, for example, specifies guidelines for an accepted quality limit (AQL). Sampling plans for inspecting mechanical fasteners produced on a large scale, such as screws, nuts, washers, standoffs, and rivets, within the scope of our incoming goods inspection are based on this internationally recognized method.