Zinc-plated Countersunk Head Self-drilling Screws with Wings
Material: Carbon steel
Head Style: Countersunk head/Customised
Driver types: Philips drive/Customised
Shank Size: M3.9, M4.2, M4.8, M5.5, M6.3/Customised
Length: 38mm, 45mm, 50mm, 60mm/Customised
Coating: Zinc-Plated, Dacromet, Ruspert, etc.
Speed up your projects with our zinc-plated self-drilling screw with wings. Engineered with a unique wing design, they drill through wood cleanly without binding, then the wings automatically snap away to tap secure, metal-to-wood fastening. The Philips recess and countersunk head ensure a professional, flush finish every time.
Frequently Asked Questions
Q1:How do we use drilling screw with wings?
A: First, the integrated wings drill out the wood, creating a clearance hole that prevents the sheet metal thread from engaging (force feeding) the timber. Then, as the screw advances and the wings contact the metal substructure, they shear off. Finally, the first few rotations of the screw cut the mating thread into the metal, allowing the remainder of the shank to be driven securely into the newly formed thread.
Q2: What is the purpose of the wings?
A: The wings act as a reamer, creating a hole in the wood slightly larger than the screw diameter to prevent the wood from riding up or splitting before the thread engages. They snap off when they contact the metal substrate.
Q3: What materials can these screws fasten?
A: These screws are ideal for attaching timber, fiber cement, or particleboard to metal profiles (steel or aluminum), such as in drywall construction or commercial roofing.
Q4: What is the advantage of the countersunk head?
A: The countersunk head enables the screw to sit flush with or below the surface of the timber, allowing for a clean, professional finish, especially in flooring or cladding applications.
Q5: Do I need to pre-drill a hole?
A: No. The self-drilling point (“Tek point”) eliminates the need for pilot holes in metal (typically up to 5 mm thick), saving time and labor.
