Is there any difference between the surface of the black phillips screws and Dacromet?

Last week, Mr. Hu from Beijing wanted to customize a black phillips screws made of 8.8-grade carbon steel, which required a 48-hour salt spray test. Ask if we can customize?

According to Mr. Hu’s request, in fact, this requirement cannot be met, because if the surface of carbon steel is blackened, it cannot pass the salt spray test. Ms. Song told Mr. Hu about the salt spray test. Mr. Hu said that if his black phillips screws could not pass the salt spray test, is there any recommended black surface treatment? He needs to pass a 48-hour salt spray test.

Ms. Song recommended Dacromet black surface treatment to Mr. Hu. Mr. Hu asked what is the difference between the Dacromet surface treatment and the blackened one?

The salt spray test of Dacromet surface treatment can be done for hundreds of hours, so the salt spray test required by Mr. Hu can definitely be satisfied. The blackening cannot pass the salt spray test.

If you also need to customize black phillips screws or other types of screws, please contact Shi Shi Tong screw manufacturer, Shi Shi Tong specializes in customizing various types of non-standard special-shaped screws. Serving every customer well and solving every customer screw customization problem is our pursuit!

Skype: kalyn qin M: +86 18818786322 Tel: +86 0755-27322278 sst@szsst88.com Add: No. 11, Dinghou Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, Guangdong, China