iexcell 50 Pcs M3 x 35mm Thread Pitch 0.5 mm Alloy Steel 12.9 Grade Hex Socket Head Cap Screws Bolts Kit, Black Oxide Finish

Got the pieces i needed to finish the wing mount socket heads that snapped clean off my v5 Notorious...still holding strong first set out on few hard wnough wing landings

I purchased the 100-pack of iexcell M3 x 25mm 12.9 Grade Hex Socket Head Cap screws for a 3D printer build, and I am highly impressed. The 12.9 Grade alloy steel is visibly strong and durable, holding up perfectly against high torque without stripping the hex socket—a common issue with lower-grade hardware. The threading (0.5 mm pitch) is clean and consistent across all screws, ensuring smooth and secure installation. They arrived well-packaged, and the count was accurate. Great value for high-strength metric hardware. Highly recommended for hobbyists and professionals needing reliable M3 screws.

If you’re buying these to do the gimbal spring mod on the Flysky NV14 Nirvana transmitter, they will work but with a couple caveats. First the thread pitch is different, but you’re also screwing into plastic so this screw will cut it’s own threads. Take it slowly and it shouldn’t damage the spring adjuster. This works out great in the end because these screws have a finer pitch, so they’ll let you make finer tension adjustments on the springs. The second caveat is that the screw heads are a LOT bigger than the screws you remove, so they will rub slightly on the edge of the circuit board on the backs of the gimbals. I used a small diamond file that came with one of my mini quad frames to file the edge of the board slightly so the screw head would clear it (about 1/32”). This mod makes a huge difference in stick feel, and now I can throttle up without turning, and turn without throttling.

Good, cheap stuff for hobby projects. Exactly what I needed to replace the screws in my NEMA motors.

Good value