Flenspennen

Flenspennen are specialized fasteners used to connect flanged components. They are characterized by their cylindrical shank and a flanged head, which provides a larger bearing surface than a standard bolt head. This larger surface area helps distribute the load more evenly, preventing damage to the connected materials, especially when they are soft or brittle. Flenspennen are often used in applications where high clamping forces are required or where the connected surfaces are sensitive.

The design of a flenspennen typically includes a fully threaded or partially threaded shank. The flange on the head can be smooth or serrated. Serrated flanges provide increased resistance to loosening due to vibration. They are manufactured from a variety of materials, including steel alloys, stainless steel, and other high-strength metals, depending on the intended application and the environmental conditions. Common head styles for flenspennen include hex heads, T-heads, and cap heads, with the hex head being the most prevalent.

Applications for flenspennen are diverse and can be found in industries such as automotive, aerospace, heavy machinery, and construction. They are frequently employed in assembling engine components, mounting brackets, and securing structural elements. The primary advantage of using flenspennen is their ability to create a secure and stable connection with reduced risk of fastener pull-through or damage to the workpiece. Their design simplifies assembly by eliminating the need for a separate washer in many cases, thus streamlining the fastening process.