This Arrowmax AM-030003 item is an RC-scale wheel fastening accessory supplied as 2 pcs of M4 threaded titanium wheel nuts. They fit RC vehicles that accept M4 wheel fasteners and are commonly chosen to replace steel nuts for weight and service reasons.
Installation notes: confirm your hub or wheel uses an M4 thread, clear any debris from mating threads, seat the nut solidly against the wheel or adapter, and tighten to a firm feel without over-torquing; re-check after the first session. These nuts are intended for regular maintenance and tuning work where consistent clamping is required.
Tuning impact: changing to titanium M4 nuts can influence pit service speed and vibration response of the wheel assembly; check thread condition and nut seating during setup and after any heavy running.
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