Stainless steel self drilling screws made by YUS550 material with high hardness and excellent corrosion resistance.
Hardness: min. 600 HV
Corrosion resistance: Over 4,500 hours / 6 months
example of #12 screw with No. 5 drill point
Steel metal sheet up to 13mm thickness
Stainless steel sheet up to 5mm thickness
The picture shows drill point did not wear after drilling test