Ulti-Mate branded pozi drive yellow zinc coated wood screws. Each box contains a Phillips SQUARE-DRIV STICK-FIT driver bit, which is engineered for a better fit to the screw's recess. This patented SQUARE-DRIV shape enables more stable, one-handed driving.
The countersunk head includes ribs beneath for cutting the countersunk hole and a Type-17 slash point for cutting through the hardest timber, with no pre-drilling. The slash point is only present on screws that have 30mm of thread and beyond.
These Ulti-mate woodscrews have a heavy duty core for added strength and are coated with a wax lubricant for low torque insertion.
SQUARE-DRIV screws can be driven with any standard cross recess driver bit.
