Nuts have internal machine threads, for use with machine thread bolts and screws.

Nuts, #1

Hex machine screw nut

Hex machine screw nuts

A hex nut in smaller sizes for machine screw diameters under 1/4.

  • Stainless steel 18-8

See also

Rivet nuts

Threaded inserts & Rivet nuts

For adding a machine thread to material that otherwise can not be tapped.