High performance self drilling roofing and cladding screws for metal from our Drilltech range, includes a large diameter reversed top section underhead thread to securely grab the sheeting, toughened shanks and hex washer heads, fitted with neoprene sealing washers for a high performance fix and a long life watertight seal.

Provides a rapid fix self sealing fastener solution for fixing profiled roofing and cladding sheets and trims to structural steel components, assemblies and sections. 

Features:

• Manufactured to Australian Standard AS3566
• Underhead reversed thread for high strength sheet clamping.
• Self drilling hardened points for fast insertion and self centered start.
• Parallel thread providing a constant and even clamping load.
• Heavy duty high strength shanks designed for use with powerdrivers.
• Thread cutting profile with a coarse tapping thread for rapid installation.