Round head self tapping screws, how to check the quality of surface plating?

When the round head self tapping screws need to be surface-plated, how do we check the quality of the surface plating of the screws?

Some customers have requirements for the surface plating thickness of the round head self tapping screws. When the plating is completed, specific instruments are needed to check whether the thickness of the surface plating layer has reached the customer’s standard. If it is not reached or far exceeds If the customer’s request is not met, it is necessary to remove the surface plating and re-plating. If it is far beyond, it is generally asked if the customer can accept it. If it doesn’t work, it needs to be re-plated.

If the surface to be plated is white, the color is very different from the sample, and the plating is wrong, such plating is unacceptable and re-plating is required. If the surface of the same batch of round head self tapping screws is very different, then the screws need to be replated.

If you want to custom round head self tapping screws, please feel free to contact us at annie.li@szsst88.com

Skype: kalyn qin M: +86 18124507113 Tel: +86 0755-85296744 Email: annie.li@szsst88.com Add: No. 11, Dinghou Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, Guangdong, China