Review on 🔩 iFlight 12PCS M3X7+4.5 Anti-Vibration Fixed Screws Mounting Hardware Spacer Standoff RC Screws Kit with 12PCS M3 Nylon Hex Nut for Naze32 CC3D F3 F4 Flight Controller FPV Racer by Ryan Fuhrer

This works. The metal parts are firmly glued to the rubber and will not come loose. The rubber is surprisingly flexible. You can bend them about 10 degrees and easily squeeze them together with little effort. Although the photo shows plastic nuts, I didn't put the nuts in the bag. So four, not five stars. (Sellers should use a photo of the EXACT product, not generic or outdated photos.) However, they work as expected and I have over 100 M3 nuts already.