Timberfix Csk Self Drill Screw – for Steel 4.0 – 12.5mm
- For fixing timber to steel 4.0 – 12.5mm thick
- Countersunk self-embedding head
- Reamer wings to prevent timber jacking
- Three stage organic coating
These screws use reamer wings to drill a clearance hole in the timber to prevent it from jacking off the steel. The self-embedding feature assists the head to pull down flush into the timber. They have a high tech organic coating for superior rust proofing qualities to standard zinc plating.
For screws into these steel thicknesses a Tek Screwdriver giving 1500 – 2500rpm should be used to ensure adequate drilling speed and driving torque