Techfast Self-tapping Countersunk Torx Head Window Screw 3.9 x 13mm

For PVCu window/door frame with metal reinforcement. Countersunk head with Torx-compatible recess. Self-drilling tip. Impact Bit included. Protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours. Complies with EU Safety, Health and Environmental requirements.