Hexagon Bolt M8 9/16 Inch Grade 4.8 Galvanized Corrosion-Resistant Industrial Applications

This hexagon bolt is crafted from SS304 stainless steel, which offers superior resistance to corrosion, rust, and oxidation. SS304 is highly durable in both fresh and saltwater environments, making it an excellent choice for applications in harsh industrial settings or outdoor installations.

The bolt features an M8 size with a 9/16-inch thread, offering a secure fit and reliable fastening in various mechanical assemblies. Graded at 4.8, it provides sufficient strength for general industrial use, such as in equipment, machinery, and piping systems.

Additionally, the galvanized finish adds another layer of corrosion protection, particularly useful in coastal or humid environments where exposure to water and chemicals is frequent. The bolt is suitable for industries such as manufacturing, construction, and automotive, where long-lasting, rust-resistant performance is crucial.

Galvanising is a surface treatment technique whereby a layer of zinc is deposited on the surface of a metal, alloy or other material to provide aesthetic appeal and to prevent rusting. The main method used is hot-dip galvanising.

Zinc is soluble in acids and alkalis, so it is called an amphoteric metal. Zinc hardly changes in dry air. In humid air, a dense film of alkaline zinc carbonate is formed on the surface of zinc.

In containing sulfur dioxide, hydrogen sulfide and marine atmosphere, zinc corrosion resistance is poor, especially in the high temperature and high humidity containing organic acid atmosphere, zinc coating is very easy to be corroded.

There are two types of galvanising solutions: cyanide plating solutions and cyanide-free plating solutions. Cyanide plating solution is divided into microcyanide, low cyanide, medium cyanide, and high cyanide categories. Cyanide-free plating solutions include alkaline zincate plating solution, ammonium salt plating solution, sulphate plating solution and ammonia-free chloride plating solution.