Nuts

Nuts are very useful to attach machine thread fasteners. Different types of nuts in various sizes and materials are available. Nuts are widely used as pipe fasteners. In-fact no bolts can be fixed to a pipe without the use of nuts. Bolts and nuts are used in combination.

Materials used:
Common materials for nuts are as follows:

  • Stainless Steel
  • Brass
  • Bronze
  • Aluminum
  • Copper
  • Zinc
  • Alloy steel
  • Carbon steel
  • Cast Iron etc.

Finishes on nuts:
NutsNuts and bolts are used in combination. So whatever finishes are available on bolts are also available on nuts. Some of the popular finishes are as follows:

  • Zinc
  • Black Oxide
  • Tin
  • Cad
  • Copper
  • Teflon
  • Hot Dip Galvanized
  • Mechanical Galvanized etc.

Types of nuts:


Hex Nuts

Hex Nuts:

Also known as finished full, these nuts are used for fastening to a bolt while joining materials together mechanically.


Hex machine screw nuts

Hex machine screw nuts:

These nuts are used with smaller machine screw sizes under ¼ inch, and are used to fasten a bolt mechanically.


Hex lock nuts nylon insert

Hex lock nuts nylon insert:

These nuts help prevent loosening from vibration due to the presence of the nylon material located at the top.


Hex jam nuts

Hex jam nuts:

Another type of a hex nut (thinner version) in sizes ¼ inch and above.


Hex jam nylon lock nuts

Hex jam nylon lock nuts:

These nuts are a thinner version of hex lock nuts with nylon insert.


Cap nuts

Cap nuts:

These nuts have a finished top.


Square nuts

Square nuts:

Square nuts, in the shape of square, were mostly replaced by hex nuts. 


Wing nuts

Wing nuts:

These nuts are turned by hand.


Acorn Nuts

Acorn Nuts:

These nuts have a high crown used for appearance.


Prevailing torque lock nuts

Prevailing torque lock nuts:

These are metal lock nuts which are non-reverseable and are used in high temperature applications.


Hex Nuts

Hex Nuts:

Also known as finished full, these nuts are used for fastening to a bolt while joining materials together mechanically.


Hex machine screw nuts

Hex machine screw nuts:

These nuts are used with smaller machine screw sizes under ¼ inch, and are used to fasten a bolt mechanically.


Coupling nuts

Coupling nuts:

These nuts are long nuts to connect pieces of male threaded fasteners or threaded rods.

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