TIMCO Metal Construction Heavy Section Hex Self-Drilling TEK Screw with EPDM Washer Zinc 5.5 x 80mm

Summary

The TIMCO 5.5 x 80mm Heavy Section Hex Self-Drilling TEK Screw with 16mm EPDM Washer is a high-performance metal construction fastener designed for fixing cladding, roofing, and liner panels directly into heavy-gauge steel sections up to 12mm thick. The self-drilling tip eliminates the need for pre-drilling, saving time on site, while the bonded EPDM washer provides a watertight seal at the fixing point. Zinc plated for reliable corrosion resistance, it is a trusted choice for professional steel-frame construction applications.

Features

• Self-drilling tip - no pre-drilling required, drills directly into heavy section steel up to 12mm
• Fine self-tapping metric thread for secure engagement in heavy-gauge steel
• 16mm bonded EPDM washer compresses on tightening to form a watertight seal
• Hexagon head for high-torque drive with a standard nut driver or impact driver
• Zinc plated finish for corrosion resistance
• Suitable for fixing roofing sheets, cladding panels, and liner panels to steel purlins and rails

Specifications

• Brand: TIMCO
• SKU: ZH80W16B
• Diameter: 5.5mm
• Length: 80mm
• Head Type: Hexagon
• Washer: 16mm EPDM bonded washer
• Point Type: Self-drilling (TEK)
• Thread Type: Fine metric self-tapping
• Material: Carbon steel
• Finish: Zinc plated
• Application: Heavy section steel up to 12mm

What's Included

• Box of TIMCO 5.5 x 80mm Heavy Section Hex Self-Drilling TEK Screws with 16mm EPDM Washer (quantity per box as per TIMCO standard pack size)