•Can these screws be used for materials other than PVCu?Yes. While they’re primarily designed for PVCu bay window sections, they can also work effectively in other thin metal or plastic applications.
•Is pre-drilling required?Generally, no—these screws have a self-drilling tip designed to reduce or eliminate the need for pre-drilling, depending on the material thickness.
•Are these screws rust-resistant?They are zinc-plated for general corrosion resistance, making them suitable for many indoor and outdoor applications. However, if you need high-level or marine-grade corrosion protection, consider stainless steel or specialised coated screws.
•Which screwdriver or drill bit do I need?These screws use a Phillips PH No.2 drive. Ensure your screwdriver or drill bit matches for a secure fit.
•What is the difference between wafer head and other head types?A wafer head has a broader, flatter surface that helps distribute pressure and creates a flush finish, which is especially beneficial when working with PVCu to prevent deformation.