Threaded Washer Fasteners Custom Metric Inch Size SEMS Galvanizing

The threaded washer fasteners are also known as SEMS screws. SEMS screw combines two separate parts into one pre-assembled, low-cost fastener. With washers under the head, SEMS screw is fast, permanent, and easily adaptable to many applications. Ever Hardware provides the custom-made threaded washer fasteners and customizable packaging.

Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), is the process of applying a protective zinc coating to steel or iron, to prevent threaded washer fasteners 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, application of chromates over zinc is also seen as an industrial trend.
Hot-dip galvanizing is the process of immersing iron or steel in a bath of molten zinc to produce a corrosion resistant, multi-layered coating of zinc-iron alloy and zinc metal. While the steel is immersed in the zinc, a metallurgical reaction occurs between the iron in the steel and the molten zinc. This reaction is a diffusion process, so the coating forms perpendicular to all surfaces creating a uniform thickness throughout the part.

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Category Threaded Washer Fasteners
Finish Galvanization or As request
Type Machine/Inch Threaded or As request
Material Bronze/Stainless Steel/Steel/Aluminum/Brass
Brand Ever Hardware
Place of origin China Mainland
Size option As request
Color Natural or as request

Threaded Washer Fasteners Custom Metric Inch Size SEMS GalvanizingEver Hardware Industrial Limited

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