Fastener such as wedge anchor through bolt threaded rod galvanizing thickness standard

wedge anchor through bolt threaded rod galvanizing thickness standard

1. The local thickness of the zinc coating on the head or rod of the bolt or screw should be no less than 40um, and the approved average thickness of the coating should be no less than 50um.

2. The local thickness of the zinc coating on the part other than the head or rod of the bolt or screw should be no less than 20um, and the approved average thickness of the coating should be no less than 30um.

If the workpiece construction environment has personalized requirements for the salt spray test, the required zinc coating thickness can be customized.

Hot dip galvanizing wedge anchor thru bolt thickness standard

The national standard for hot-dip galvanizing thickness is a standard formulated to ensure the quality and safety of hot-dip galvanized products. According to different application scenarios and requirements, the national standard for hot-dip galvanizing thickness specifies different ranges of galvanized layer thickness.

Generally speaking, the national standard for hot-dip galvanizing thickness requires the galvanized layer thickness to be between 20-80 microns. Among them, 20 microns is the minimum thickness specified, which is suitable for general anti-corrosion and anti-rust requirements, while 80 microns is suitable for high-strength anti-corrosion and anti-rust requirements, such as metal structural parts of important facilities such as bridges and buildings.

In actual production, enterprises can choose the appropriate galvanized layer thickness according to their needs. If the galvanized layer thickness is insufficient, it will affect the anti-corrosion and anti-rust performance of the product, while if the galvanized layer thickness is too large, it will cause the product surface to be rough and unsightly, and it will also increase production costs.