When dependable wheel retention matters, the HUDY 269541-K Aluminium Nut M4 with serrated flange is a compact, practical choice. It is targeted at RC hobbyists seeking a blend of grip and reduced mass.
The serrated flange increases contact friction to help prevent the nut from backing off, while the aluminium alloy keeps the overall weight low compared with steel alternatives.
M4 sizing makes these nuts useful across many common RC applications, and the black finish helps conceal everyday marks while providing surface protection.
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