Zinc plated and galvanized fasteners are made of steel with a sacrificial zinc coating.
Galvanized steel zinc plated steel.
But don t be a magpie and just pick up the shiny object think about the use.
That coating is eventually consumed.
Steel when being hot dip galvanised is dipped into a 450 c bath of molten liquid zinc.
There are some instances when zinc is electrically connected to dissimilar metals on purpose such as on boats or on pipelines.
Zinc plating looks shiny and pretty galvanized looks dull.
The steel and the liquid zinc bond together because of the high temperature.
Both methods add a protective layer of zinc to the steel.
Galvanized plating is used in a multitude of materials in the construction industry including large structural shapes.
The galvanized coating is applied over steel to protect that steel not the other non coated steel that the galvanized steel happens to be in contact with.
When comparing stainless steel vs.
Galvanized coatings are almost always several times thicker than electroplated coatings so galvanized fasteners greatly outlast zinc plated fasteners.
The steel and the zinc become one.
Both add a layer of zinc to the outside of the product.
Galvanized nuts it s important to realize that stainless steel itself is a material and galvanizing and zinc plating are forms of coating.
Zinc plating on the other hand is immersed in a cold chemical solution of zinc and uses an electrical current to apply a layer of zinc.