Wing-Tip Self-Drilling Screws - PH - For Timber to Light Section Steel - Exterior

Countersunk wings

Specifically designed to attach wood to metal (Max. 4mm). Coarse self-tapping 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.

Features

• Wood mansard to steel frames

• Plywood fascial to steel frames

• Plywood roof and floor sheet to steel frames

• Large bearing surface ideal for plywood

• Flat head design countersunk and seat flush in wood

• Aluminium/Steel washer

• Special winged fasteners ream a hole in wood preventing thread engagement during drilling