With Spax 4 x 50 mm chipboard screws, you assemble timber frames, furniture, and panels like mdf or chipboard with speed and precision. The partial thread design pulls wooden components tightly together, eliminating gaps for a solid joint. Equipped with a t-star plus T20 drive, each screw delivers exceptional bit grip without cam-out, allowing smooth driving with maximum torque transfer. The countersunk multikop head sinks flush into the wood surface without splintering, leaving a neat and clean finish. Featuring an innovative wirox coating, these steel screws provide durable resistance against corrosion. With a box of 500 pieces, you have the reliable fastening power needed for any interior finishing project.