PEM brand fasteners are hardware components that provide threaded attachment points for thin parts like sheet metal brackets and printed circuit boards (PCBs). Holes in thin parts are not ideal to be tapped because there would not be enough threads to ensure a secure joint.
PEM fasteners are available in various thread gages and can accommodate different sheet metal materials. PEM fastener installation methods include pressing, broaching, or welding. There are many types of PEM fasteners, but a majority of applications require one of three types: nuts, studs, or standoffs.
The figure below shows a typical application for a PEM fastener. The fastener (in this case a nut) has been pressed into a thin bracket. The bracket is attached to a mating part with a screw. The screw and the PEM nut create the threaded joint to hold the parts together.
A standoff is a type of threaded fastener that provides uniform spacing between parts. An example of a traditional standoff is shown in the left figure below. This type of standoff would be screwed into a tapped hole. If the part
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