Classic Multi-Purpose Screws - PZ - Double Countersunk - A2 Stainless Steel - Box 200 All the features and superior performance of the Classic Multi-Purpose Screw manufactured from A2 Stainless Steel. Ideal where ultimate corrosion resistance is required when fixing to softwoods, hardwood (pre-drilled), chipboard, MDF and plastic. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics e.g. Green Oak. NOTE: Sharp point only. Double countersunk reduces the likelihood of head shear and assists completion of countersinking 40° deep single thread to provide a secure fixing with high pull-out resistance All sizes up to and including 75mm are fully threaded and lengths 80mm and above all have 70mm thread length Box 200 Austenitic Stainless Steel (A2-304) Double Countersunk Hardwood, Softwood, Chipboard, MDF, Plastic, Thin Sheet Metal, Corrosive Wood (e.g. Oak, Cedar) PZ2 Pozi-Drive, Posi, Phillips