- Multi-Head Countersinks Screw Head Flush
- Single Thread with Ground Serrations for Fast & Accurate Driving
- Zinc-Plated & Blue-Passivated
£34.99Inc Vat
- Double-Countersunk Head with Underhead Ribs
- Single Thread Grips the Wood for a Secure Fix
- Zinc-Plated & Yellow-Passivated
£19.99Inc Vat