Specification of Nut:
1.Materials that we can produce:
   Carbon Steel, Stainless Steel, Copper and Alloy Steel
2.Standards: DIN,BS, ISO, IFI, and other standards or non-standards, etc
3.Types: Hex Nut, Square Nut, Flange Nut and Cap Nut
4.Features: Tight, secure, adequate strength
5.Applications: Structural, machinery and automotive applications
6.Packaging Information: All nut threads are packed by the packaging box (dimension:260mm x 260mm x 140mm). If you have any further questions, please feel free to contact us.

Standard & Grade of Hex Nut:

Standard & Grade of Square Nut:

Standard & Grade of Flange Nut:

DIN6923, IFI D-21

Here is the DIN6923 Flange Nut Dimension. We can offer other standards and grades according to your request.  

Standard & Grade of Cap Nut:

DIN917, DIN986, DIN1587

Here is the DIN917 Cap Nut Dimension. We can offer other standards and grades according to your request. 

Tips of choosing Nut:

*Make sure that you use a nut designed with greater strength than the bolt. Because a weaker nut and stronger bolt results in fastener failure.

*Always choose a nut finished to match the bolt. For example, hot dip galvanized hex bolts need to be joined with hot dip galvanized nuts, and correspondingly, with hot dip galvanized washers.