The advantages of the new Timco Velocity premium multi-use screw: Self gripping countersunk head with patented "D" shaped double countersunk to assist countersinking and to prevent damage to furniture hardware. Superior corrosion resistance with special plating to give over 200 hours salt spray resistance. Anti-friction lubrication to enhance screw insertion time and reduce driving torque. Extreme grip thread to reduce torque and give an enhanced pull out resistance in a variety of applications. Rapid drive twist shank to give rapid drive and exceptional performance. Quick start point for fast pick-up and insertion time.