This Arrowmax AM-030003 item is an RC-scale wheel fastening accessory supplied as 2 pcs of M4 threaded titanium wheel nuts. They are made for RC cars that use M4 wheel fasteners and are a replacement option for worn steel nuts while offering lower mass where titanium is preferred.
Installation notes: always confirm the hub or adapter thread is M4 before installation, remove debris from threads, fully seat the nut against the wheel or adapter, and tighten until secure without over-torquing; verify tightness after the first run. These nuts are useful for routine servicing and repeatable wheel clamping during setup.
Durability note: while titanium resists some forms of wear compared to standard steel nuts, regularly inspect mating threads and nut seating, especially after extended running or impacts.
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