Unifix High Performance Premium Woodscrew incorporates cutting edge technology and features to optimise fixing timbers. The key features of this superior screw include:* Pozi Plus Drive Recess Resists Cam Out and Slipping.* Double Countersunk for Shear Resistance.* Sharp Single Thread Design For Superior Grip.* Slash Point for Effortless Penetration* Easy Start Sharp Point* Superslip Lubricated Yellow Finish* CE Approvals and Certified..