This is an optional Losi 4mm Aluminum Serrated Lock Nut Set. These lightweight aluminum locking nuts feature a serrated surface for additional holding power to ensure wheels don't come loose during long runs.
Features:
Made from lightweight aluminum
Serrated surface for additional holding power
Part Compatibility:
Losi 22
Losi 22T
Losi 22SCT
Losi TEN-SCTE 2.0
Losi 22-4