Lystaii 320pcs M3 Nylon Hex Spacer Standoff Kit Male Female Screw Nut Threaded Pillar Hex Standoff PCB Motherboard Circuit Board Standoffs Mounting Hardware Spacer Assortment Kit (Black)

I used these in a portable Meshtastic LoRa node. No issues, worked as described.Product was delivered on-time. Would recommend.

Have a couple of Arduino projects going on. These worked OK so far. As has been said, not very many nuts in the box. Will have to sort more of those. Quality and uniformity is fine.

These o-rings come in very handy!

Everything worked great just no washers.

Don't expect to much from these, they are cheap plastic. If like me, that's exactly what you needed, then this is the set you want.