With the Spax chipboard screw 4.5 x 50 mm, you achieve solid and gap-free timber connections with ease. The partial thread pulls the top board tightly against the supporting structure for a firm, perfectly seated joint. Thanks to the t-star plus T20 drive, you get a precise bit fit and maximum torque transmission without cam-out. The countersunk multi-head mills its own recess for a clean, flush finish without requiring pre-drilling in softwoods. Finished with chromium-6-free Wirox coating, it delivers significantly higher corrosion protection than standard zinc plating. This 500-piece pack is ideal for furniture making, interior fitting, and general indoor wood structures.