MDF / Chipboard Screw:4.5 x 40mm - DIN 7505/YZPL

These steel fasteners are manufactured to the DIN 7505 standard, featuring a 4.5mm nominal diameter and a 40mm nominal length designed for secure joining in medium-density fiberboard and chipboard applications. The screws are treated with a yellow zinc plated surface finish, which provides corrosion resistance suitable for standard interior environments. This specific size and material combination offers the strength needed for durable wood panel connections while maintaining compatibility with standard driving tools. Buyers select this product for its reliable performance in engineered wood products, ensuring a strong bond without splitting the substrate. When selecting a fastener for your project, match the 40mm length to the combined thickness of the joined boards to achieve optimal holding power.