General description The Forgefix Spectre Screw Pz Compatible Csk ZYP 4.0 x 40MM is an advanced multipurpose wood screw designed for various applications. These screws incorporate premium features, making them suitable for load-bearing timber construction. They are fully threaded and designed with a countersunk, pozidrive compatible, recessed head for easy installation. Technical specifications Size: 4.0 x 40mm Thread: Fully threaded Pack Quantity: Box of 1000 MPN: SPE440YB EAN: 5028485190653 Usage The Spectre screws are ideal for wood applications, featuring a sawtooth thread design that prevents splitting and a reamer to avoid jacking. They also come with synthetic lubrication for easy insertion. Other information Surface hardened with a quick start type 17 slash point Zinc yellow passivated finish for excellent corrosion resistance CE approved for use in load-bearing timber construction