A nylon plug with a zinc plated hammer in screw for fast fixing repetitive applications. Suitable for concrete or masonry. A countersunk ribbed plug manufactured from PA6 nylon and fitted with a Zinc Plated or Grade 304 stainless steel drive screw. Suitable for use in concrete brick, concrete blocks & natural stone. Restricted use in hollow bricks and blocks and aerated concrete blocks. Timber battens, frame ties, electrical boxes, suspended ceiling trim and conduit clips.