Hex self-lock nuts, 10 pieces M3 with CNC aluminium flange nylon, with self-locking metal black, red : Amazon.de: DIY & Tools
Traxxas TRA1654X Traxxas Wheel Hubs Aluminum with Pins - Blue : Amazon.de: Toys
Hexagonal Drilling Screws 6.3 x 25 DIN 7504 Form K, Self-Tapping A2 Stainless Steel (Pack of 20) - V2A Drywall Screws with Hexagonal Head and Collar for Soft Metals (e.g. Aluminium) :