Specifically designed as a multi-purpose product, the 25 sharp point, special thread design, lubrication and corrosion resistant plating ensures the screw will consistently perform efficiently in hardwood, chipboard, MDF, plastic and thin sheet metal, whilst offering exceptional holding power. Pan head for improved clampingFully threaded up to 75mm, thereafter partially threaded40 deep single thread to provide a secure fixing with high pull-out resistanceSurface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductilitySingle slash on 25mm+ to reduce torque and the likelihood of the timber splitting when the screw is inserted close to the edge"Thread Dia. mm - 4.0Length mm - 40Thread Length mm - 40Head Type - PanRecess Type - PoziPoint Type - 25 Sharp with Single SlashDriver Bit Size - PZ2Finish - Zinc & YellowMaterial - Carbon Steel Timco Classic Multi-Purpose Screws - PZ - Pan Head - Yellow (Size 4.0 x 40 - 200 Pieces) Size: 1000mm x 1000mm