Hex Washer Head Self Drilling Screws Black Zinc Plated Tek Screws for Metal Roofing Construction
- Quality assured: strict inspection, stable export
- Non-standard custom: made to drawings, flexible
- Fast delivery: in stock, reliable lead time
- Professional service: 20+ years, full support
✅ Self Drilling Point Design
Integrated drill tip allows fast drilling and fastening without pre-drilling.
✅ Hex Washer Head Structure
Provides larger contact area and stronger holding force for stable installation.
✅ High Strength Carbon Steel
Made from high-quality carbon steel with excellent mechanical strength.
✅ Anti-Corrosion Surface Treatment
Black coating improves corrosion resistance and extends service life.
✅ Fast & Easy Installation
Reduces installation time and improves working efficiency.
✅ OEM Customization Available
Customized sizes, threads, coatings and packaging are available.
