Swage (PEM) Nuts #2-56 through 3/8-16 collection

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Putting these up because we use them every day around the design center and it appears that not all countries that are supported by GrabCAD have access to the CAD files.PEM Nuts #2-56 through 3/8-16 collection:PEM Nuts are pieces of hardware that press-fit into a hole in sheet metal. They are designed so that when enough pressure is applied, material will flow into the grooves and lock the nut in place.See below for detailed description.A swage nut or self-clinching nut is a type of nut or threaded insert is used on sheet metal. PEM nut is a brand name by Penn Engineering & Manufacturing Corp often used generically for swage nuts from any manufacturer.It permanently anchors itself to the sheet metal by swaging the surrounding material. Generally, the swage nut is made of a hard metal such as stainless steel, which is inserted into a pre-drilled hole in a softer ductile material such as aluminum. The inserted shank has three diameters: a main shaft which fits the hole closely, a thin smaller-diameter undercut, and a larger-diameter serrated clinching ring. Forcing the clinching ring into softer material, with an arbor press or by tightening a screw through the hole, causes it to plastically deform (swage) into the annular recess in the shank. This locks the nut into the hole. The knurling on the clinching ring is not necessary for this step, but prevents the nut from rotating after installation.This is a popular method for adding strong, load-bearing threads to a relatively thin piece of soft sheet metal.