Pozi Screws & Red Raw Wall Plugs 400 Piece Provides rapid fixing with high pull out values. Designed with a 2-way expansion system. Pozi head twin thread countersunk screws. Screw size: 4.2 x 38mm. Bright zinc plated BZP. Interior and exterior use. Ideal for all types of tradesmen. For brick stone masonry and concrete. For all other screws and fixing please visit our shop.Contents: 200 x Red Plugs - Drill size 5.5mm. 200 x Pozi screws - 4.2 x 38mm.