Type of surface color: according to different needs, the surface is plated white, military green, color yellow, no rust Dacromet.

This product is made of high carbon steel with cold upsetting molding. It needs to be hardened to HRC39~44 ℃ (12.9 bolts).
The surface treatment is environmentally friendly blue zinc, electroplating between 5~8 m, salt spray up to 96H above.

Dongguan Tiansheng Co., LTD., specializing in the development and production of non-standard fasteners for 12 years.

Welcome to customize your drawings/samples.