The 120mm Evolution Self-Drilling Insulation Screws provide a reliable fastening solution for securing rigid insulation boards to metal framing, commonly paired with insulation washers. These fasteners work effectively on light gauge steel or timber substrates, delivering excellent performance in applications where corrosion resistance is essential or where dissimilar metals require careful handling.
Material: Carbon Steel (C1022 grade) with EvoShield 500HR coating for superior corrosion protection. Design: 4.8mm diameter self-tapping thread with a specially engineered self-drilling point for quick, efficient installation. Substrate Compatibility: Performs well on both steel and timber surfaces. Packaging: Supplied in boxes of 200 screws.
Length: 120mm Application: Light gauge steel or timber substrates Diameter: 4.8mm
Fastening insulation to light gauge steel or timber substrates. Particularly suitable where dissimilar metals are involved or enhanced corrosion resistance is a priority.
Explore our comprehensive Render Supplies range. We deliver throughout the UK Mainland. For advice on product suitability for your specific project or to request a bulk quotation, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Unilin Insulation Pricing.








