Tackle demanding joinery and timber projects with the Spax 4 x 45 mm chipboard screw. Its full-thread design provides maximum pull-out resistance across the entire screw length, securely fastening particle boards, MDF, and hardware. With the t-star plus T20 drive, you get optimal bit engagement and full driving control without frustrating slippage or cam-out. The countersunk multi head pulls smoothly into the wood for a clean, flush finish without splitting the timber fibres. Built from steel and protected by an innovative wirox coating, it delivers superior corrosion resistance for interior woodwork, furniture making, and timber frame installations.