Plain shank diameter 3.5mm. Plain shank diameter 4.2mm. Professional high performance multi purpose wood screws. Regarded as one of the best wood screws available.
Cutting teeth on threads for easy penetration. Type 17 gash point for fast start. Spiral helix on shank to reduce drive torque. Under head ribs provide superb countersinking. Pre-lubricated with a hard coating. Shorter sizes are fully threaded. Yellow zinc plated for corrosion resistance. FREE 1st CLASS UK P&P. Orders placed before 2pm are dispatched same day (Mon-Fri).Photographs are for illustration only, these are not mixed packs. A vat invoice is issued with all orders. Deliveries to some remote post codes may incur additional costs. Our aim is for you to be 100% satisfied.