Promoting smooth and unmarred designs
06 July 2017
PEM® concealed-head self-clinching studs and standoffs for thin metals provide permanent mating threads and promote smooth and unmarred designs.
Supplied by PennEngineering® they 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 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 aluminium sheets as thin as 0.062 inches/1.6mm. Studs (aluminium or stainless steel) are available in thread sizes #4-40 through #10-32 and M3 through M5, in lengths from 0.250 inches through 1 inch and 6mm through 25mm. Standoffs (stainless steel) are offered in thread sizes #4-40 through 1/4-20 and M3 through M6, in lengths from 0.187 inches through 1 inch and 4mm through 25mm.
Sheet preparation for installation requires only a blind milled hole to the recommended size and minimum depth. Using a PEMSERTER® or other standard press, installation is quick and easy by placing the fastener in the hole and applying sufficient squeezing force. The fastener head then locks securely in the sheet and can handle substantial loads.
All PEM concealed-head fasteners are RoHS compliant and selected stud types can be ordered to NAS63540/4 specifications.
