4.0 Optimaxx Extreme Performance Wood Screws 200PC Box (4.0x35mm, Zinc Plate & Yellow Passivated, Pozi Screws)

ManoMano

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 a deeper pozi recess. Sharp, wide, deep thread formation coated with a unique lubricant. Sharp saw tooth 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. Specifically 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 degrees, with a thread that extends to the tip of the screw - giving you an immediate start even with the hardest, smoothest surfaces.

Amazon

Double reinforced collar - significantly strengthens the underside of the head, preventing snapping and allowing a 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. Razor sharp point as low as 20 degrees, with a thread that extends to the tip of the screw - giving you an immediate start even with the hardest, smoothest surfaces. 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, Weight: 2.645547144 Pounds, Manufacturer: Optimaxx