The requirements related to dimensional properties also apply to fasteners made of copper or. This document specifies requirements for electroplated coatings and coating systems on steel fasteners. These satisfy, in particular, the friction property requirements for screws and parts as per drawing, without having a negative impact on the environment, as was the case with coatings and surface treatment processes with chromium. This document is referenced by: DIN EN ISO 4042 - Fasteners - Electroplated coating systems (ISO 4042:2018) Published by DIN on November 1, 2018. The combination of basecoats with organic and inorganic topcoats produces multifunctional surfaces with a high corrosion resistance.
The dry film is free from lead, mercury, cadmium, nickel, cobalt and chromium (VI).ĭue to the low baking temperatures of 200 to 230 ☌ annealing is omitted. Translator Translate texts with the worlds best machine translation technology, developed by the creators of Linguee. In conjunction with mineral binders the metal particles generate an optimum bond with the base. Many translated example sentences containing 'en iso 4042' German-English dictionary and search engine for German translations. Basecoats are highly reactive systems using zinc and aluminium discs. In contrast to the electrodeposition of metals, the current-free application of basecoats does not lead to hydrogen embrittlement. We are able to satisfy highest corrosion protection requirements with the increasing use of zinc multi-disc coatings, as defined in DIN EN 13858:2007-02. Zinc alloy coatings according to DIN 50979:2008-07 with defined Fe content (abbreviation: „ZnFe“) or nickel content (abbreviation: „ZnNi“) are available with a transparent surface, as well as with black passivate finish – both with/without sealing, and including or excluding defined friction coefficient adjustments. We furthermore offer Cr6-free coatings and surface treatment for our screws and parts per drawing in compliance with the pertinent automotive standards of Audi, BMW, Bosch, Ford, Daimler, MAN, Opel, VW, ZF and many others.
We guarantee quality series production.Īll sizes of our bare programme not already offered with different coatings can be supplied with the given finishes, subject to certain conditions. The threads of our coated screws are tested in the factory.