TechFast Window Screw 3.9 x 35mm Self Tapping Self-Drillings BOX OF 1000

For PVCu window/door frame with metal reinforcement

Countersunk head with Torx-compatible recess

Self-drilling tip

Impact Bit included

Fire and corrosion resistant, protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours