Reisser Countersunk Cutter Wood Screws - 5 x 25mm (200 Box) (8200S220500254) These high quality Reisser Cutter Wood Screws are uniquely designed to effectively secure your hardwood, softwood or man-made board workpiece without damaging any of the visible surfaces or splitting the wood. Self Countersinking - pronounced ribs & tucks on the underside of the head allows these screws to create their own counterbore to sit flush with the work surface. Reinforced Collar - the neck of these screws has been enlarged and bolstered with additional material to prevent the screw from snapping and allow for an extra-deep pozi slot which reduces the risk of a 'cam-out' when inserting or removing the screw. Lubricated, Wide & Deep Thread - the sharp edged thread of these screws reduces the driving resistance by up to 40% which makes it much easier to drive these screws into all types of wood. Yellow Tropicalized Finish - the rust resistant coating applied to these screws has been adapted to offer prot