Metric Lock Nuts Material: These M8 Lock Nuts are made of quality Carbon steel,surface is Zinc-plated for good rust resistance
Black Nylon Insert Lock Nuts: Locknuts embedded with nylon inserts, so that it and the bolt threads to form a close fit, and in the role of the elasticity of the nylon friction resistance, in order to achieve the purpose of anti-loosening.
Wide Application: Common uses for metric hardware nuts include securing instrument and equipment components, linking pipes and structural elements.Suitable for use or maintenance in a wide range of applications such as furniture decoration, automotive repair, the mechanical industry and small repairsaround shops, construction, etc