Where to buy the screws and washers for BotBrain assembly
What fasteners you need (M3 tapping screws + washers) and where to source them.
The BotBrain assembly uses standard metric hardware — mainly M3 tapping screws (for plastic) plus general-purpose M3 washers.
- United States: McMaster‑Carr is the easiest source (search for M3 Torx tapping screws for plastic + M3 general-purpose washers).
- Outside the US / local sourcing: any well-stocked hardware store or hobby electronics shop should carry equivalent M3 fasteners.
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