Zilken supplies fasteners and fastening technology for the full range of industrial applications—from hex head screws compliant with DIN and ISO standards to high-strength custom-made products and pre-assembled installation kits.

The product range includes electrogalvanized and hot-dip galvanized steel, A2 and A4 stainless steel, brass, polyamide, and high-strength special steels such as 25CrMo4. The range covers all standard media resistance and corrosion protection requirements.
Screws in accordance with DIN 933, DIN 931, DIN 912, and ISO 4014, 4017, 4762. Nuts according to DIN 934, DIN 985, and ISO 4032. Threaded rods according to DIN 976, stud bolts according to DIN 938 and DIN 939 — for applications in mechanical and plant engineering as well as in the process industry.
From 4.6 for simple joints to 12.9 for high-stress structures. Corrosion-resistant grades A2-70 and A4-70 for outdoor use and contact with media. Special steels with material certificates for high-temperature and high-pressure applications in accordance with EN 10269.
Whether it’s flange connections, mechanical engineering, steel construction, civil engineering, chemical engineering, or food processing: Zilken supplies the right fasteners for all relevant applications. In the construction industry, this is referred to as fastening technology—the product range covers both areas. Thread sizes from M3 to M45, as well as strength grades and materials tailored to specific requirements, are available.
Whether it’s assembly kits based on a parts list or custom screw sets: Zilken handles picking, packing, and labeling in accordance with the production process. The parts arrive exactly where they’re needed—ready for assembly.
Learn more about kitting & sets
Zilken not only handles the delivery of individual items, but also coordinates bill of materials, suppliers, and logistics for complex procurement requirements—from individual parts to assembled kits. Fastening technology as part of an integrated C-parts and MRO portfolio.
Here you will find an overview of the materials, standards, and product types that Zilken sources and supplies in the field of fastening technology. If something isn’t listed here, we’ll source it for you.
With a network of over 400 specialized suppliers and decades of procurement expertise, Zilken ensures that customers always receive the right fastener—whether it’s a standard part compliant with DIN and ISO standards or a custom-made item that is difficult to source.
Zilken is taking over all C-part management at INFICON: 1,246 items, one point of contact, one system.
This is how Zilken streamlines the supplier landscape in connection technology into a cohesive whole.


Sealing technology for maximum plant availability: O-rings, flat gaskets, and mechanical seals prevent leaks—standardized or manufactured to drawing.

Molding technology for precise components: Plastic, metal, and rubber molded parts made using injection molding, casting, or 3D printing—from prototypes to complete series assemblies.

Pipeline technology for safe media transport: pipes, fittings, and flanges according to DIN or drawings—ready-to-install systems for liquid and gaseous substances.