No additional plugs required, making the WHO screw a user-friendly and time-efficient fixing solution.
- Countersunk Head
- Made of hardened steel, electro-zinc coated
- Imposes less stress on substrate during installation due to no expansion force
- Small hole diameter giving high loads
- Easily removed for temporary works
- Suitable for use in pre-drilled 6mm diameter concrete, full and hollow bricks, stone and structural clay tile and without pre-drilling in aerated concrete and timber
- Applications include use with door and window frames, suspended ceilings and lightweight steel angles