Timco 35030C2TUB 3.5 x 30 Posi C/S C2, tub qty 1800Features Positive Drive Recess The TIMco C2 recess is manufactured using state of the art machinery, dies, and quality control procedures, giving a precise and positive drive control on every screw. Engineered Countersunk The TIMco C2 countersinking ribs have been designed and positioned to sit under the countersinks of the ironmongery and hinges to give a smooth and flush finish and prevents plating and material damage. Twin-Cut Technology The TIMco C2 is first in its category to offer parallel twin cut manufacturing technology; this patented method of manufacturing applies the cuts in excatly the same position and angle everytime. Using this technology our designers and enginers have developed a new generation in fasteners that gives a consistent and exceptional level of performance in multiple materials. Unique Synthetic Lubrication The TIMco C2 has been coated with a high-molecular polymer lubricant that dramitically reduces insertion torque by upto 52% and increases rust protection up to 20 times longer than a standard zinc plating.Full batch-traceability to the original steel mill certificate.