Introduce

Hex self drilling screws can vary – the smaller screws are used in applications like fixing thin gauge metals and fixing metal to wood. The larger screws are used in roofing and other industries which require self-drilling through tough metals. Our screws come in stainless steel, alloy steel, carbon steel, and other materials that prevent corrosion. If the hex head self-drilling screws are used in extremely hard materials, it is advised to use them after a pilot hole has been drilled.

Dimension drawing

Feature

• Made of hardened carbon steel, the screws offer strong pullout strength to hold the roofing sheets.
• Sealing washers help against water penetration.
• Commonly with corrosion coating.
• Different points for different applications.
• Sharp points for easy to screw in and damage a little.
• Drill points for screw-in hard metal structure.
• Various colors of paint on heads for specific applications.
• Can be drilled near the edge of roofing sheets.
• Long life service.

Application

• Commonly used to fasten metal, plastic, and fiberglass roofing sheets to metal or wood structures: the roofing screws with drill points for metal structures and the ones with sharp points for wood structures.
• Ideal for fastening the overlap roofing sheets.