Tianjin China Wholesale Zinc Painted DIN M3 M4 M6 Hex Head Self Drilling Roof Screws with Washers Metal Roof Screws

Tianjin China Wholesale Zinc Painted DIN M3 M4 M6 Hex Head Self Drilling Roof Screws with Washers Metal Roof Screws. Diverse Material Options: Available in C1022, 1022A, Q195, Q235, 45#, 55#, and 22A carbon steel grades. Multiple Surface Treatments: Offered in White Zinc Plated and Yellow Zinc Plated finishes. Customizable Thread Types: Options include Fine Thread and Coarse Thread to suit specific needs. Wide Size Range: Shank diameter from 1.2mm to 10mm and lengths from 19mm to 300mm. Logo Customization Service: We provide logo customization services upon request. Flexible Packaging: Available in color boxes, wooden boxes, small cartons, or woven bags. Fast Response Time: Customer inquiries are replied to within 24 working hours. Free Sample Availability: Samples are provided free of charge, though freight must be paid by the buyer.