Size:M4 Package:50PCS(More size information please refer to the picture)
Material:Durable 304 stainless steel.Compared with normal stainless steel,it's safe, non-toxic and corrosion resistant.It is of high hardness and not easy to deform.
Smooth surface without burrs.
Strict Quality Test:Salt spray test, Spectral detection and Chemical detection insure high quality products.
Practical.It can reduce the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.