Information
Standard: ASME/ANSIB18.2.1, IFI149, DIN931
Diameter: 1/4"-2 1/2, M4-M64
Length: ≤800 mm or 30"
Material: Carbon Steel
Grade: Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9
Thread: UNC, UNF
Finish: Plain, black oxide, zinc plated (clear/blue/yellow/black), H.D.G.
Application: Structural Steel; Metal Building; Wind Energy; Mechanical


The differences between black oxidation, galvanizing, hot-dip galvanizing and yellow zinc plating

Black oxidation: The color of the metal surface turns black when it is exposed to air, water, or other chemicals in a natural or artificial setting. This occurrence is known as blackening.
There are two types of galvanizing: hot-dip galvanizing and electrogalvanizing. Hot-dip galvanizing involves submerging the entire metal component in molten zinc to create a coating, whereas electrogalvanizing involves applying a layer of zinc to the metal surface via an electrolytic technique.
Yellow zinc plating: Generally speaking, yellow zinc plating refers to a unique electrogalvanizing method that uses an electrolytic procedure to deposit a coating of zinc on the metal surface, but the surface treatment is yellow.
Application fields and advantages and disadvantages:
Blackening treatment: Applicable to agricultural tools, furniture, construction, industrial production and artworks, etc., to increase the practical and artistic value of the product and create a classical or retro aesthetic. Galvanizing: Widely used in building structures, auto parts, furniture, power equipment and other fields to protect appliances from corrosion and enhance their wear resistance. Hot-dip galvanizing: Applicable to applications requiring high corrosion resistance, such as bridges, transmission towers, etc. Yellow zinc plating: Mainly used for parts that require a specific appearance, such as decorations and some electronic product housings.
About us
Haiyan Gete Hardware Co.,Ltd
Haiyan Gete Hardware Co.,Ltd is a top-rated manufacturer and supplier of fastener products. Our product line ranges including standard fasteners (such as bolts, nuts,screws,studs and anchors) and non-standard parts which customize according to the drawings from the customers .If you're in need of top-quality fasteners, Contact us today to learn more about our products and services.

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