Our M4 knurled nut is made from high-quality 1215 MS material and features a durable Zinc-nickel alloy coating with a thickness of 7-8 μm, providing excellent corrosion resistance even in harsh environments.

The nut has diamond-shaped knurling on both sides that provides a secure grip and makes it easy to install and remove by hand or with a tool.

Produced using state-of-the-art CNC lathe machines, this nut meets strict quality standards and is designed to provide reliable performance over the long term.

Additionally, it has been tested in accordance with ISO 10289 class 8 salt spray test, demonstrating its ability to withstand exposure to saltwater without corroding or deteriorating.

We produced this kind knurled nut for our world-renowned lithium-ion battery supplier, they use the knurled nut in plate lugs for electric car, but this kind knurled nut can also be used in a wide range of other applications where a strong and reliable fastener is required.