- Which screwdriver bit is required for this Spax screw?
- You need a PZ1 (Pozidriv cross recess Z) bit for this 2.5 mm diameter screw.
- Do you need to pre-drill before driving this screw into wood?
- Pre-drilling is generally not required in softwoods, though it is recommended when working with hardwoods.
- What is the function of the ribs under the countersunk head?
- The ribs mill into wood for a clean, flush fit and provide a braking effect when tightening against metal fittings.
- What is the main advantage of a full thread?
- A full thread absorbs higher tensile and compressive loads across the screw length, ensuring strong timber connections.
- What are the benefits of the Wirox coating?
- Wirox is a chromium(VI)-free surface coating by Spax that provides strong corrosion protection for indoor applications.