TIMCO Solo 5.0x40mm PZ2 Countersunk Wood and Chipboard Screw, Yellow Zinc Plated

Where the 3.5mm screws feel too light, the TIMCO Solo 5.0 x 40mm is the thicker option. It is a wood and chipboard screw with a countersunk head, so it finishes flush, and a PZ2 Pozi drive that gives the driver strong engagement and helps avoid cam-out.

The steel is yellow zinc plated for interior building environments and general installation work, and the thread is designed to hold well in timber fibres and engineered wood. The 40mm length suits medium-depth timber fixings, as TIMCO's product data puts it.

For a kit buyer, it is a spare for a mount, box or bracket on a wooden surface that needs a stronger fixing. Use a PZ2 bit for the best grip.