Drywall Screws - Fine Thread - PH - Bugle - Black. Bugle head to reduce likelihood of damaging the board surface. Head Type: Bugle. Thread Ø (mm) 3.5-4.8. Thread Type: FINE. BS EN 14566:2008. Plated in a BZP (Bright Zinc Plate) or Black Phosphate to withstand over 50hrs salt spray.
eBay