wholesaler galvanized full thread screw rod M6M8M10M12M14M16

What are the main requirements for galvanizing of galvanized full thread screw rod?

Including appearance, thickness, adhesion and certificate of conformity.‌

Galvanized appearance of Threaded Rod Galvanized

All hot-dip galvanized parts should be visually smooth, without nodules, roughness, zinc thorns, peeling, missed plating, residual solvent slag, and no zinc nodules and zinc ash.

Thickness: For components with a thickness of less than 5mm, the zinc layer thickness should be greater than 65 microns; for components with a thickness of more than 5mm (including 5mm), the zinc layer thickness should be greater than 86 microns.‌

Galvanized steel rod adhesion

‌The hammer test method is used, and the adhesion is judged to be qualified if it does not fall off. ‌‌

Galvanized thread rod certificate

Hot-dip galvanizing manufacturers should provide corresponding test or inspection certificates and galvanized product certificates.‌

In addition, the hot-dip galvanizing process has high requirements for equipment and relatively high costs. At the same time, environmental issues need to be considered, such as the recovery and treatment of zinc liquid. Therefore, when choosing a hot-dip galvanizing treatment method, in addition to meeting the above technical requirements, it is also necessary to comprehensively consider cost and environmental factors.

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