The Centurion 3.5mm x 25mm Stainless Steel Chipboard Screws feature a twin thread design for superior holding power and easier insertion. These versatile screws are ideal for fixing into softwoods, hardwoods, chipboards and fibreboards. With their extra deep insert bit recess and corrosion-resistant stainless steel construction, they’re particularly well-suited for marine, coastal and sanitaryware applications. The countersunk head design ensures a flush finish with the substrate surface.