Specification of Metric Nuts:
1.Standards & Sizes:
ISO4032: M2-M56
ISO4033 & ISO4034:M5-M36
2.Materials that we can produce:
Carbon Steel, Stainless Steel, Copper and Alloy Steel
3.Types:
Hex Nut, Square Nut, Flange Nut and Cap Nut, etc.
4.Surface Treatments:
*Electric Galvanized
*Stainless Steel
*Yellow Zinc

*Zinc Plated

Here is the ISO4032 Metric Nut Dimension:

Here is an example of ISO4032 Metric Nut Packaging Information, if you want to know more about other standards' packaging information, please feel free to contact us.