Sleeve Tube Like Nut Without Internal Thread Zinc Plated

Sleeve tube is just like a nut, the different from sleeve tube and nut is sleeve tube does not have an internal thread. And the hole from different sides is not the same size. Sleeve tubes mostly used to protect the metal part or connecting the different parts. Ever Hardware provides custom-made fasteners and customizable packaging.

Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), or just zinc plating is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. Galvanizing protects in three ways:

It forms a coating of zinc which, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron. For better results, the application of chromates over zinc is also seen as an industrial trend.