Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic Used for attaching metal to

Used for attaching metal to heavy section steel (Max

Used for attaching cills to the base of door or window frames

Pan head for improved clamping

The collated strips are specifically designed to be compatible with all leading power tool brands

For use when attaching a weather bar or drip rail to PVCu window and door frames to prevent water ingress

Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic Used for attaching metal toSpecifically designed to attach wood to metal (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. R. P. M. without burning out. When the wings hit the metal they will break off to permit the thread to self tap into the metal.