Reinforced screw head-facilitates high knock-in loads with the added benefit of plug neck grip Hammer in drive screw for fast installation Deforming crumple zone allows quick adjustment in uneven surfaces Extended expansion zone gives extra grip Available loose or pre-assembled Fast fixing with minimal screwdriver work Quicker to use than standard plug & screw Helps save time on large & reptitive projects Applications include fixing stud battens before cladding, fixing long runs of shelf supports & for fixing skirting