Can I also use normal wood screws to build a treehouse?

To fasten a treehouse to the tree – No!

1. The screws available in building material stores are not designed for the extreme loads of a treehouse!
2. Treehouse Screws are made of a special steel alloy, have a large diameter (ø = 40 mm) and a load-optimized geometry!
3. The frequent alternating loads due to wind fluctuations are particularly problematic – these can lead to spontaneous fatigue fractures in the long term with normal wood screws!
4. Treehouse constructions must keep distance to the tree so that the tree can grow further in width, these leverage forces can only be absorbed by professional Treehouse Screws!