The Original PlugNut® -- often imitated, never duplicated.

PlugNuts®  are hardened, threaded inserts designed to be pressed into ductile materials to assure good fastening characteristics for a part or product.       First, cost is low--installation is inexpensive. Once inserted, the PlugNut® becomes a "self-clinching" preplaced nut; ideal for use in blind, hard to reach locations and to improve fasten-ability for thin or soft materials such as steel, brass and aluminum.

Each PlugNut® is made with a tapered knurled projection -- the large end of which is greater in diameter than the hole in which the nut will be used.  An annular groove separates the top of the projection from the underside of the head of the nut.  When the nut is pressed into a mating hole, the wall material of the hole is radially displaced in an outward direction. Displaced hole material flows into the knurls and groove to clinch the nut securely in place.  This is accomplished without affecting the flatness of component product material.

Low Profile of PlugNut® Uses Shorter Screw for Same Clamp Load Than Either Bolt and Nut or Recessed Insert. No Gaps in Matching Surfaces

Deformed Assembly Uses Longer Screw and Allows Gap Between Matching Surfaces.

STEP 1: Drill or punch recommended hole size in product material. Place PlugNut® on top of hole and locate in line with press punch and anvil.

STEP 2: Press nut into hole. Use sufficient pressure to properly seat head by slightly embedding the head a few thousandths into the surface of the component material.