410 Stainless Steel Hex Head Roofing TEK Screws | DIN7504K Self Drilling Screws with EPDM Washer

410 Stainless Steel Hex Head Roofing TEK Screws are widely used in metal roofing, steel framing, and construction applications where drilling capability, strength, and sealing performance are required. Designed according to DIN7504K standard, these screws combine drilling and fastening functions into one solution, improving installation efficiency and reducing labor costs.

The hex washer head design allows secure tool engagement and high torque application, while the bonded EPDM washer provides excellent sealing against moisture, vibration, and weather conditions.

Manufactured from 410 stainless steel, these roofing screws offer higher hardness and better drilling performance compared with standard stainless steel grades, making them ideal for fastening metal sheets and steel structures. They are commonly used in roofing systems, industrial buildings, solar mounting structures, and outdoor construction projects.

As an experienced fastener manufacturer, we provide customized sizes, coatings, washer materials, and packaging solutions according to customer requirements. Bulk wholesale supply and OEM services are available for distributors, contractors, and industrial users worldwide.