PEM® concealed-head self-clinching studs and standoffs from PennEngineering® install permanently in thin metal assemblies to provide strong and reusable threads for mating hardware while preserving a smooth and unmarred appearance on the side of the sheet opposite installation. The concealed-head feature additionally will satisfy strict ingress protection requirements in assemblies where a sheet must remain completely sealed from air, liquid, dust, gases, and other potential contaminants.
The fasteners install reliably in steel or aluminum sheets as thin as .062” / 1.6mm. Studs (aluminum or stainless steel) are available in thread sizes #4-40 through #10-32 and M3 through M5 and in lengths from .250” through 1” and 6mm through 25mm. Standoffs (stainless steel) are offered in thread sizes #4-40 through 1/4-20 and M3 through M6 and in lengths from .187” through 1” and 4mm through 25mm.
Sheet preparation for