TIMCO C2 Strong-Fix Multi-Purpose Premium Countersunk Gold Woodscrews - 3.5 x 12 A premium multi-material screw featuring the award winning C2 twin-cut technology. The dual angle full thread design ensures maximum pull-out strength on every fixing. Ideal for applications when optimum holding force is required such as hinges, brackets and high load environments. C2 Strong-Fix PZ2 CSK ZYP Deep recess to prevent 'cam-out', giving a precise and positive drive control on every screw Ribs under head for improved countersinking and to give a smooth and flush finish, also prevents splitting and material damage Coated with a high-molecular polymer lubricant that reduces the insertion torque by up to 52% and increases rust protection up to 20 times longer than a standard zinc plating Dual angle thread gives an ultimate performance and an exceptionally high pull-out resistance All sizes up to and including 75mm are fully threaded and lengths 80mm and above all have 70mm thread length