Fastrax M3 Black Locknuts

Fastrax M3 Black Locknuts provide a dependable fastening solution for models and projects that use 3mm threads. The locking nut design helps resist loosening under vibration, while the black finish offers a clean, discreet look on your build. Identified by part number FASTM3BK, they are a practical choice for routine maintenance and general RC hardware needs.

These M3 locknuts can be used wherever an M3 fastener is specified across a wide range of radio control applications. For best results, check your model’s manual to confirm the required thread size before installation.

Suggested Compatibility

• RC cars, trucks and buggies using 3mm threaded hardware
• General modelling applications requiring M3 locknuts