Composites-compatible fastening system

PennEngineering's new PEM VariMount fastening system uses self-clinching technology paired with a round steel or stainless steel base plate.

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PennEngineering (Danboro, PA, US) has launched the new PEM VariMount fastening system (Type VM), which uses proven self-clinching technology paired with a round steel or stainless steel base plate to offer a clean and ready-made assembly for mounting into any rigid material or panel, including composites, plastics and metals. Multiple radial holes in the base plate and a generous footprint combine to promote effective mounting of the assembly, whether the method is mold-in or laminate with layers, adhesives, standard fasteners or spot welding. Mounting can be performed either on the front or through the back of a panel. The VariMount assembly’s pre-installed PEM fastener – permanently clinched into the base plate – holds securely in place without the use of welds. In addition, the radial holes in the base plate for mounting the assembly are sized to accept universally standard diameters of rivets, self-clinching fasteners and loose hardware such as nuts, bolts and screws. A variety of PEM self-clinching fastener types for accepting mating hardware in the application can be specified for VariMount assemblies. Standard offerings available in a range of metric and unified thread sizes and lengths include steel and stainless steel nuts, steel blind nuts, steel standoffs and steel and stainless steel threaded studs. Beyond these standard offerings, other PEM fastener types and sizes can also be supplied pre-installed into base plates to suit particular application requirements. Users also can purchase base plates separately.