With the Spax chipboard screw 4.5 x 45 mm, you create tight and secure timber joints without gaps. The partial thread design firmly pulls the outer wooden piece against the sub-structure for solid fastening. Thanks to the T-star plus T20 drive recess, your bit stays locked in place, eliminating slippage and ensuring full driving control. The countersunk multi-head sinks flush into the wood for a neat, smooth finish. In addition, the zinc Wirox coating provides reliable corrosion protection for interior applications and sheltered outdoor projects. With this pack of 500 screws, you are fully equipped to complete your woodworking and fitting tasks with precision and speed.