Spax Timber Construction Screw - Silver - 6.0 x 120mm

No, the Spax Timber Construction Screw features 4CUT point technology designed to prevent timber splitting and eliminate the need for pre-drilling in most common timber applications.

You will need a T20 bit to engage with the T-STAR plus recess on the screw head.

The WIROX coating is a high-quality surface treatment that provides superior resistance to rust and corrosion, making the screws suitable for use in exposed or damp conditions.

The full thread design allows the screw to engage more deeply into the timber, maximizing its ability to absorb both tensile (pulling) and compressive (pushing) forces, leading to stronger joints.

Yes, the Silver WIROX coating offers excellent corrosion protection, making them suitable for many exterior timber construction projects.

The integrated serrations on the lower part of the screw shaft help to break up the wood fibers as the screw is driven, reducing the torque required and making installation faster and easier.

The integrated washer head provides a larger bearing surface against the timber, distributing the load more evenly and increasing the stability of the connection compared to a standard flat-head screw.

Ensure you are using the correct T20 bit for the T-STAR plus recess and that your drill/driver has sufficient power. For exceptionally hard timber, a pilot hole might be beneficial, though not typically required.

Verify you are using a T20 bit that is in good condition. Ensure firm, consistent pressure is applied to the screw during driving. Check that the T-STAR plus recess is not obstructed by debris.

While the 4CUT point is designed to prevent splitting, very brittle or thin timber might still be susceptible. Ensure the screw is not over-driven, and if splitting occurs, consider a slightly smaller diameter screw or a pilot hole.

Check that the screw was driven to the correct depth and that the timber is sound. Ensure the washer head has seated properly for optimal stability. If the issue persists, the screw may not have achieved adequate grip in the timber.