Countersunk smooth shank wood screws engineered for precision fastening in joinery and cabinetry applications. The 3.5mm diameter and 40mm length provide optimal holding power for medium-density materials without splitting. Yellow passivated finish delivers corrosion resistance suitable for interior use. Smooth shank design eliminates thread marks on finished surfaces, making these screws ideal for visible installations where aesthetics matter. Professional-grade construction ensures consistent performance across high-volume projects.