Thread support for thin sheets: firm, durable and economical installation
to develop an easily installable self-clinching fastener that can be used to provide a high load-bearing thread in thin sheets, printed circuit boards and plastic parts was initiated by PEM way back in 1942. These new types of fastener save time, weight and the number of components. This technology was accepted by the industry shortly after the second world war and led to efficient production of self-clinching fasteners. The product range also expanded thanks to increasingly used thinner and lighter metals. Original parts were modified in the course of time. Today, they are suitable for a variety of applications.
Advantages of self-clinching fasteners
Why, how and where self-clinching fasteners are used
A PEM fastener is simply a part, mostly having threads, which when installed in a fluid material, removes the material in the hole in such a manner that it flows in a special undercut in the shank area due to cold-forming. Twisting is prevented with the help of knurls or a special shape of the head. The fastener thus forms a unit along with the work piece in which it was installed. PEM fasteners are mainly used when high torque-out and pull-through values are required in thin materials since this cannot be ensured by other methods. Use of these fasteners may prove to be economical in sheets where threads could be provided. Thinner sheets can be used to save costs in the entire assembly. PEM products have been accepted in diverse areas long ago: from aviation and space industry to mechanical engineering, telecommunications, general instrumentation, office equipment, electronics and automobile design and where firm and durable anchoring is required in thin-walled sheets, printed circuit boards or plastic parts.
1. Drill a hole
2. Insert PEM