Countersunk Wing is ideal for fixing wood to steel sections. The Wings drill a clearance hole through the wood, then break off as the cutting point bites into the steel.
- Wood mansard to steel frames
- Plywood fascia to steel frames
- Plywood roof and floor sheet to steel frames
- Large bearing surface ideal for plywood
- Flat head design countersunk and seats flush in wood
- Aluminium/Steel washer
- Special winged fasteners ream a hole in wood preventing thread engagement during drilling