Zilken supplies screws, nuts, washers, bolts, pins, and rivets for industrial applications. All products are delivered in compliance with standards, are traceable, and, if needed, are backed by appropriate inventory levels.

Screws, nuts, washers, bolts, pins, and rivets across all common standards and materials.
Galvanized steel, A2/A4 stainless steel grades, and hot-rolled and high-strength steels for demanding environments.
Fasteners conforming to DIN, DIN-EN, and DIN-EN-ISO standards, available upon request with a 3.1 or 3.2 test certificate in accordance with DIN EN 10204.
Pre-stressed high-tensile connections in steel construction, expansion joint connections in plant engineering, and applications requiring documentation with a certificate.
Here you'll find an overview of the materials, standards, and product types that Zilken sources and supplies in the fastener sector. If something isn't listed here, we'll source it for you.
If it's not listed here, we'll source it for you. Please describe your needs directly.
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 INFICON’s entire C-part management: 1,246 items, one point of contact, one system.
This is how Zilken streamlines the supplier landscape in the Fasteners a cohesive whole.

Whether it’s assembly kits based on a bill of materials or custom screw sets, Zilken handles picking, packing, and labeling directly in accordance with the production logic. The parts arrive where they’re needed, ready for assembly. This way, kitting with the right sets becomes an integral part of a more efficient procurement and assembly process.
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. This makes Fasteners of an integrated C-parts and MRO portfolio.
Yes. We supply bolted connections with expansion shanks in accordance with DIN 2510, as well as fasteners made of hot-rolled and high-strength steels in accordance with DIN EN 10269—such as 21CrMoV5-7 (1.7709)—for elevated temperatures in turbine, boiler, and plant engineering. We tailor the material, strength, and matching nuts in accordance with DIN 2510-5 to your design, and provide a material certificate upon request.
Yes. For load-bearing connections that are designed to be preloaded, we supply complete sets in accordance with DIN EN 14399 (HV and HR systems), consisting of a bolt, nut, and washer; for connections not designed to be preloaded, we comply with DIN EN 15048 (SB).
Yes. We supply fasteners with test certificates in accordance with DIN EN 10204, specifically inspection certificate 3.1 3.2, and meet the requirements of the AD 2000 pressure vessel regulations. This ensures that the traceability of materials and mechanical properties is documented throughout the entire supply chain.
Yes. In addition to A2 (1.4301) stainless steel fasteners, we supply the more corrosion-resistant A4 grades (1.4401, 1.4404, 1.4571) for chemical, marine, and hygienically demanding environments. We source higher-alloy specialty materials specifically according to specifications for special media requirements.
Yes, we’re also a leader in this area. In addition to screws, nuts, and washers, we also supply dowels, expansion anchors, and anchors. We’d be happy to source the right fastening solutions for your specific application. This way, you get fastening and joining technology all from one source—drawn from our own experience and through our network of suppliers.
Yes, that is our core expertise. In addition to standard sizes, we source specialty screws, fine-pitch threads, and custom designs specifically according to your specifications or drawings. As a systems and process partner, we tailor our procurement—and, if desired, our inventory management with safety buffers—to your needs, drawing on our experience and our established network of suppliers.

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

Custom-made parts for industrial applications: turned and milled parts, sheet metal blanks, and specialty components made of steel, stainless steel, aluminum, and plastic, manufactured according to customer drawings, standards, or samples.

Hydraulic technology for power and precision: pumps, cylinders, valves, and power units for hydraulic and pneumatic systems. Components and assemblies according to DIN standards and drawings.