Chipboard Screws - Multipurpose Woodscrews - Tub - Pozi Multi-purpose screws are designed for use on a variety of materials such as hardwood, chipboard and MDF, without the need for pre-drilling. The single thread allows multi-purpose screws to cut deeper into the material, providing greater holding strength. Zinc and yellow passivated finish for protection. Increase your work efficiency with multi-purpose screws. Designed to be used on a variety of materials such as hardwood, chipboard, and MDF, you can say goodbye to the hassle of pre-drilling. Our single thread design allows these screws to cut deeper into the material, giving you a stronger, more secure hold. The zinc and yellow passivated finish also ensures that your screws are protected, so you can trust in their durability.