Custom Surface Treatment for Screws, Nuts, Bolts & Other Fasteners

For projects with specific requirements for fastener properties, GEVAG is the right partner. We optimize all types of screws & bolts, nuts, or washers through specific functional or optical customization of surface properties. Always with the goal of providing our customers with tailored fastening solutions that offer not only the highest quality but also the best possible functionality for the respective requirement. To this end, we provide targeted advice on various options for the finishing and surface treatment of our diverse fastening components.

Demanding fastening solutions often require the use of specific components that are not found in standard supplier assortments with regard to the required surface properties. GEVAG has many years of experience in product optimization for the quality improvement of screws, bolts, nuts, washers, and individual fastening elements.

Regardless of whether they are standard parts according to DIN and ISO or custom-made drawing and special parts – we offer various processes to specifically optimize the surface properties in a functional or optical way and thus adapt them to the required application area and the wishes of our customers. For particularly demanding application areas, such as in automotive or medical technology, we also offer fine cleaning of our products.

Optimization for demanding applications: from metallic finishes and coatings to passivation

To improve durability or visual appearance, GEVAG offers a variety of surface finishing processes. Upon request, we enhance fasteners with surfaces made of zinc, zinc-nickel, copper, brass, or tin – depending on the intended use and requirements of our customers. We also offer a wide range of coatings, sealants, lubricating coatings, adhesive and sealing coatings, as well as cathodic dip coatings and passivation of fasteners to improve corrosion protection.

Together with our customers, we always find the ideal solution for particularly high demands on the fastening components used and always guarantee optimum quality in surface finishing.

Fine Cleaning for Technical Cleanliness – We Offer Highest Purity for Sensitive Fastening Components

For highest purity requirements, we offer our customers industrial fine cleaning of the necessary fastening components upon request. For this purpose, we clean our products according to common standards to ensure defined cleanliness levels for subsequent assembly or application processes.

Thanks to state-of-the-art facilities, fastening elements can be degreased, de-oiled, fine-cleaned, and ultra-fine-cleaned. In doing so, we adhere to the specific wishes of our customers or current industry standards, such as VDA 19.1 and ISO 16232. Our customers receive the products with precisely the required purity to ensure the specified requirements in the respective application area.

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Fastening Technology since 1879

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