Square nut:


  • Square nut
  • Square nut
  • Square nut
  • Square nut
  • Square nut
  • Square nut

A square nut is a type of fastener that has a square shape instead of the typical hexagonal shape. It typically has four sides and four corners, with each side having a thread for gripping and securing onto a bolt or screw. The square shape of the nut makes it less likely to rotate on its own when tightened, providing a more secure grip. Additionally, square nuts are often used in applications where a regular hex nut may not fit or where a different appearance is desired.

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DIN 557

FOB Price: US $0.5 - 9,999 / Piece

Supply Ability: 10000 ton per Month

Surface treatment: Plain, Zinc Plated(ZP), GALVANIZED, HDG, Hot dip galvanized, Dacromet

Material: Carbon Steel / Alloy Steel / Stainless Steel / Brass / Copper

Standard: DIN / GB / UNC / BSW /JIS etc.

Certificate: ISO9001 ISO14001 ISO45001 SGS

Grade: 4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80 etc.

What are they used for


      Zinc Plated Square Nut                                             Stainless Steel Square Nut                                             Yellow Zinc Square Nut 

Square nut has a wide range of applications. They are designed to cover a greater surface area due to the four-sided design, which means they can squeeze a greater surface area, thus preventing them from loosening. The main advantages of square nuts over traditional nuts are that they are easy to tighten, suitable for blind tightening positions with limited space, and convenient and quick measurement of whether the bolt is loosening by itself. Square nuts are most commonly used in: building and construction, shipbuilding and aerospace, industrial automation and manufacturing, engineering and railway engineering

Square nut

Manufacturing Process

1. Raw material preparation:

The production of square nuts begins with the preparation of raw materials. The type of material used varies depending on the application and the strength required. Common materials used for square nuts include carbon steel, stainless steel, and brass.

2. Machining the square nuts:

The next step in the production of square nuts is machining. This process involves using a CNC machine to cut and shape the raw material into the desired shape and size. The machine can also be programmed to create grooves, threads, or other specialized features required for the specific application.

3. Finishing and packaging:

Once the square nuts are machined, they are ready for finishing and packaging. The finishing process involves cleaning and polishing the nuts to remove any rough edges or burrs that may have been created during machining. The final step is packaging the nuts into boxes or bags for shipment to customers. Some manufacturers may also add additional rust-resistant coatings or plating to the square nuts before packaging if required.

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