- Which screwdriver bit is required for these screws?
- These screws require a PZ1 screwdriver bit (Pozidriv size 1) to ensure a secure fit and prevent cam-out during driving.
- What are the advantages of the Wirox coating?
- The Wirox coating provides significantly higher corrosion resistance than standard zinc plating, making it ideal for indoor timber construction.
- What is a 3 x 25 mm full-thread screw used for?
- Full threading delivers high pull-out resistance and load capacity, making it ideal for securing metal brackets, fittings, and sheet materials.
- What is the purpose of the ribs under the countersunk head?
- The ribs cleanly mill the wood during insertion, allowing the countersunk head to sit flush with the material surface without splintering.
- Is pre-drilling necessary before inserting this screw?
- Pre-drilling is not required in softwood and standard board materials thanks to the sharp Spax point. Pre-drilling is recommended in hardwoods.