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. The collated strips are specifically designed to be compatible with all leading power tool brands. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics e.g. Green Oak. The collated strips are specifically designed to be compatible with all leading power tool brands" Thread Dia. mm: 4.0 Length mm: 50 Thread Length mm: 45 Head Type: Double Countersunk Recess Type: Pozi Point Type: 25 Sharp with Single Slash Driver Bit Size: PZ2 Material: Austenitic Stainless Steel (A2-304)Size 4.0 x 50 - 1000 Pieces Timco Collated Classic Multi-Purpose Screws - PZ - Double Countersunk - A2 in Yellow