Nut
A type of hardware fastener with a threaded hole.
Nut threaded onto a bolt along with a plain washer.
Bihexagon Nut
A bolt or screw whose cross section of its head is in the shape of a 12 pointed star.
Cleveloc Nut
The collar of the nut is elliptical in cross section and it is this that provides the flexible locking element. The nut is pre-lubricated to reduce the tightening torque. Cleveloc is a registered trade name of Forest Fasteners.
Flange Nut
A nut with a built in washer to spread the load.
Hexagonal Nut
A nut with a plain internal thread and hexagonal in shape.
Lock Nut
This can be either a second nut that is tightened against the first nut or a nut that has some form of system that prevents the nut from coming loose with vibration, eg Cleveloc or Nyloc.
Sometimes called a Jam Nut.
Nyloc Nut
A nut with an elastic ring that grips the bolt and stops he tendancy for the nut to vibrate loose.
Square Nut
As per the title, a plain thread square nut.
Wing Nut
A nut with wings that allow it to be tightened and released using fingers.
See also: Bolt, Breakaway Torque, Hot Bolting, Internal Thread, Snug Torque, Thread, Washer.
Subjects: Fixings and Fasteners