5.5x70mm Tek Roofing Screws – Self Drilling with EPDM Washer (Zinc)

5.5x70mm Self Drilling Tek Screws are designed for fixing metal sheets and roofing panels where maximum penetration and holding strength are required.

This extra long length is ideal for thick materials, deep timber fixing, insulation layers, and multi-layer roofing systems, ensuring a strong and secure connection even in demanding applications.

The sharp self drilling tip eliminates the need for pre-drilling, while the hex head allows fast and secure installation using a socket driver.

Each screw is fitted with a bonded EPDM washer to create a watertight seal and help prevent leaks in roofing and cladding applications.

• Self drilling point – no pilot hole required
• Bright zinc plated steel construction
• Bonded EPDM washer for a watertight seal
• Hex head drive for secure installation
• Suitable for metal to metal and metal to timber fixing