With the Spax chipboard screw 4.5 x 25 mm, you achieve firm and neat timber joints on every job. The t-star plus T20 drive ensures a secure bit fit, preventing cam-out and giving you complete control while driving screws. Featuring a full thread, it delivers high tensile and compressive load capacity when mounting hardware or assembling sheet materials. The countersunk multi head sinks flush into the wood surface without splitting or requiring separate countersinking. Additionally, the chromium(VI)-free Wirox coating provides reliable corrosion resistance for all your interior furniture making and carpentry projects.