4.0x35mm CSK ZYP Optimaxx High Performance Woodscrews

Stock Code: 09387

Unique 24 slots cut into the underside of the head - self countersinks into all material without the need to counter bore and without surface damage.
Double reinforced collar - significantly strengthens the underside of the head, preventing snapping and allowing deeper pozi recess.
Sharp, wide, deep thread formation coated with a unique lubricant.
Sharp sawtooth formation cut out of the bottom threads - on insertion the threads bite into the timber reducing torque and resistance, enabling fast penetration without a pilot hole.
Specically positioned long thin groove – dramatically reduces pressure build-up on insertion by dispensing wood fibres, preventing splitting when screwing close to the edge.
Razor sharp point as low as 20°, with a thread that extends to the tip of the screw - giving you an immediate start even with the hardest, smoothest surfaces.
OPTIMIAXX woodscrews are fully threaded up to 50mm and then partially threaded thereafter.