With Spax s chipboard screws, you achieve firm and flush timber connections across all your interior carpentry tasks. The countersunk head with brake ribs mills neatly into the surface, delivering a clean, splinter-free finish every time. Thanks to the full thread along the 30 mm length, you gain high pull-out resistance and reliable grip when mounting fittings or thin boards. The protective Wirox finish ensures long-lasting corrosion resistance indoors, while the PZ1 recess delivers positive engagement without bit slippage.