Stainless Steel Hex Washer Head Self Drilling Tek Screws/Tapping Screw/Roofing Screw for Roof

Stainless Steel Hex Washer Head Self Drilling Tek Screws/Tapping Screw/Roofing Screw for Roof. Customized Options: Supports custom shapes, colors, and surface finishes based on client requirements. Multiple Material Grades: Available in SUS304, SUS316, and SUS410 stainless steel for diverse applications. Comprehensive Certifications: Certified with ISO, GS, RoHS, CE, and SGS standards for quality assurance. Versatile Size Range: Sizes ST4.2-ST6.3 with lengths from 19mm to 150mm to fit various needs. Flexible Payment Terms: 100% advance for orders under $5000; 30-70% T/T for larger orders. Fast Delivery Options: 5-10 days for stock items; 15-20 days for customized production runs. Professional Manufacturer: Over 20 years of manufacturing experience in stainless steel and brass fasteners. Reliable After-Sales Service: Full support for quality issues with prompt handling and responsibility.