Self-drilling ScrewsSelf-drilling screws are common construction screws used to fasten metal structures in a quick and convenient way. Choosing the right screws with compliance will reduce a lot of working time and secure your building. Sun Through offers nice self-drilling screws with good quality in competitive price. Our techniques in welding and heat treatment make the screws sharper, stronger and more long-lasting than usual.
Material: Bi-metal or carbnon steel:
Drilling point: P1~P5
Nominal size: M4.8~M7.0
*** specifications can be customized, contact us for specific specs***
Plating: Cr3+/ Cr6+ Zinc plating with choice of colors
Optional post plating finish: 500Hrs /1000 Hrs Silver Ruspert coating