Rivet nut

Kind of threaded insert
Typical rivet nut
Sectional view
Sectional view, with bolt inserted

A rivet nut, also known as a blind rivet nut, or rivnut,[1] is a one-piece internally threaded and counterbored tubular rivet that can be anchored entirely from one side. It is a kind of threaded insert. There are two types: one is designed to form a bulge on the back side of the panel as a screw is tightened in its threads. The other is similarly drawn in using a screw, but is drawn into the sleeve instead of creating a bulge.[2][3]

History

The first rivet nut was created by BF Goodrich in the 1930s, and sold under the trademark RIVNUT®. It was first used to mount rubber de-icing boots to aircraft wings.[4]

Usage

In the field of aviation, rivet nuts are often used to attach various items, such as static dischargers and inspection access covers, to the surface of an aircraft.[citation needed] Rivet nuts are an ideal replacement for weld nuts because they will not distort base materials, eliminate weld splatter, toxic fumes, and other by-products of the welding process, and can be installed in many different kinds of material including steel, plastic, composites, and fiberglass. [5]

See also

  • Swage nut
  • Friction drilling

References

Notes

  1. ^ Smith, p. 112.
  2. ^ McMaster-Carr, p. 3213.
  3. ^ McMaster-Carr, p. 3215.
  4. ^ Smith, pp. 111–112.
  5. ^ "Blind Rivet Nuts". Sherex. Retrieved 2 July 2018.

Bibliography

  • RIVNUT® The Original Blind Rivet Nut (PDF), Böllhoff Inc., 2010, retrieved 2018-09-25
  • McMaster-Carr catalog (114th ed.), McMaster-Carr.
  • Smith, Carroll (1990), Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook, MotorBooks/MBI Publishing Company, ISBN 0-87938-406-9.
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