- Double-Countersunk Head with Underhead Ribs
- Deep High / Low Thread for High Pull-Out Resistance & Waste Extraction
- Silver Organic Coating
£15.19Inc Vat
- Double Self-Countersunk Removing the Need to Counterbore
- Deep, Sharp, Single Thread for Cutting Cleanly through Wood
- Zinc-Plated
£7.49Inc Vat