Hardened wood screw 4.0x70mm countersunk head TX drive yellow zinc plated /100pcs/ TS-4070

Hardened wood carpenter screws

Hardened carpenter screws with dimensions 4,0×70mm serve as a reliable fastener for all carpentry and joinery work. Made of hardened steel with yellow electro-galvanized coating, they provide long-lasting corrosion protection while maintaining high mechanical strength.

Construction and materials

The screw shank features a wavy profile, which significantly reduces resistance during driving, while simultaneously allowing for effective clamping of the fastened elements. A partial thread with a length of 40mm guarantees secure clamping of the joined parts without the risk of damaging them.

The specially shaped tip functions as a drilling cutter, effectively preventing material splitting even when installing close to the edge of the wood. Milling ribs located under the countersunk head allow for a perfectly smooth and aesthetic recess of the screw into the material.

TORX fastening system

The TORX T20 socket ensures optimal torque transmission, eliminating the risk of cam-out in the screw head. The Torx drive significantly facilitates tool guidance during assembly and effectively protects against the uncontrolled slipping of the bit from the socket.

The ribbed thread is coated with a lubricant wax layer, which reduces the force required for driving, resulting in less tool load and saving battery energy of the screwdriver.

Material compatibility

The screws are compatible with all types of structural wood and wood-based materials, maintaining their strength parameters even when working with hard wood species.