This pack contains four aluminium flanged lock nuts with integrated nylon inserts, specified as 4mm and finished in blue, intended for R/C model applications to reduce fastener loosening under vibration.
Where to use: suited to compact fastening points on R/C cars and trucks, including minor suspension linkages, wheel fixings and other components that experience constant motion or vibration.
How to fit: hand-start the nut on a matching 4mm threaded screw or shaft to verify fit, then tighten with the correct tool until the nylon insert engages; steering clear of excessive torque helps preserve the flange and thread integrity.
Maintenance guidance: monitor the condition of the nylon insert after extended running, replace nuts that show diminished locking performance, and carry spares to keep clamping consistent during routine maintenance.
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