Nuts

Applications

 Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads' friction, a slight stretching of the bolt, and compression of the parts to be held together.


In applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed: lock washers, jam nuts, specialist adhesive thread-locking fluid such as Loctite, safety pins or lockwire in conjunction with castellated nuts, nylon inserts, or slightly oval-shaped threads

Nut Types

  • Hex A six sided nut. Also referred to as a Finished Hex Nut. 
  • Nylon Insert Lock A nut with a nylon insert to prevent backing off. Also referred to as a Nylock. 
  • Jam A hex nut with a reduced height. 
  • Nylon Insert Jam Lock A nylock nut with a reduced height. 
  • Wing A nut with ‘wings’ for hand tightening.
  • Cap A nut with a domed top over the end of the fastener. 
  • Flange A nut with a built in washer like flange. 
  • Tee A nut designed to be driven into wood to create a threaded hole. 
  • Square A four sided nut. 
  • Prevailing Torque Lock A non-reversible lock nut used for high temperature applications. 
  • K-Lock or Kep A nut with an attached free-spinning external tooth lock washer.
  • Coupling Coupling nuts are long nuts used to connect pieces of threaded rod or other male fasteners. 
  • Slotted Slotted nuts are used in conjunction with a cotter pin on drilled shank fasteners to prevent loosening.
  • Castle Castle nuts are used in conjunction with a cotter pin on drilled shank fasteners to prevent loosening.

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