Generally Used To Fix Electrical Trunking Lightweight Items Such As Paintings Cupboards And Light Duty Wall Hooks. *Drill Hole Same Size As The External Diameter Of The Plug Knock In With Screw Driver And Hammer For Optimal Expansion And Grip. *Quicker Installation Due To Plug And Screw Combination. **Sizes Available: *Nail In Anchor 5mmx35mm *Nail In Anchor 6mmx35mm *Nail In Anchor 6mmx40mm *Nail In Anchor 6mmx55mm *Nail In Anchor 6mmx70mm *Nail In Anchor 8mmx60mm *Nail In Anchor 8mmx80mm *Nail In Anchor 8mmx100mm *Nail In Anchor 8mmx120mm