This product adopts SCM435 alloy steel wire, cold heading forming, heat treatment HRC39~44 ℃ (grade 12.9).

The surface treatment is dacro, and the salt spray can be up to 1200H.
DACROMET is the abbreviation for DACROMET, DACROMET, DACROMET, DACROMET, DACROMET.
Zinc chromium coating is a new anticorrosive coating with zinc powder, aluminum powder, chromic acid and deionized water as main components.

Tiansheng professional non-standard research and development production of 12 fasteners, you are welcome to visit the guidance and customized for your products.