Flange Head Rivet Nuts (Knurled body & open end)
Flange head rivet nuts with a knurled body and open end, often referred to as Rivnuts, Blind Nuts and Nutserts®, are ideal for load bearing applications due to the large diameter head. They offer increased resistance to pull-out whilst also reinforcing the hole.
These rivet nut fasteners are a form of internally threaded insert and are used in applications where the material (wall) thickness is too small to tap a conventional thread, therefore by using rivet nuts a strong thread is created in thin sheets of material for high strength fastening from bolts and other threaded articles.
The open end style rivet nut allows the stud or male threaded component to thread through the rivet nut without constraining the length or protrusion of the male threaded part.
The knurled body of the countersunk rivet nut provides an “anti-rotation” feature preventing it from moving when subject to vibration, especially when installed in softer materials.
Flange head rivet nuts with a knurled body and open end are installed using a special tool with a threaded stud (nose) that engages with the internal threads of the rivet nut and pulls upwards, in turn deforming the unthreaded section of the rivet nut to expand under the reverse side of the material, providing a high strength permanent thread in a thin sheet material.