2 Pack Universal Joint Shaft Coupler Coupling Steering Connector for RC Car Crawler Boat,4mm to 3mm

arrived on time as expected

Excellent

On one of them, the screw threads stripped out with very little tightening pressure being applied.I am afraid to tighten any of them tighter in fear of blowing out the rest if threads.I am an Engineer and understand that these are small and lightweight, and I am confident that I didn’t over torque it.I feel this might be just a defective tap hole and will bump my rating up if I receive a good replacement.Update- I received replacement, however, I cannot raise the rating. As I was removing the defective unit it snapped in half at one of the ball joints. These are made of cheap metal and I cannot recommend them

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