Single thread multi-purpose woodscrews. Head: Countersunk pozidrive compatible recessed. Finish: Zinc Yellow Passivated. Highly versatile and immensely popular single thread screws. Perfect for a whole host of fixing needs. Ideal for fixing into a range of substrates including softwoods, hardwoods, chipboards and fibreboards. Quicker and easier insertion thanks to an extra deep insert bit recess, which enables a firmer positive drive. Single thread and special wax coating also increases speed and ease of insertion. Single thread design provides increased holding power particularly when used with particle boards like MDF. Offers more corrosion resistance than zinc plated products thanks to additional passivation process. Suitable for numerous ironmongery, joinery, electrical and plumbing applications.