🔩 XINGYHENG 600pcs M2 M3 Brass Spacer Standoff Screw Nut Assortment Kit – Male-Female/Female-Female, with Stainless Steel Screws and Nuts (M3 Brass) Review

I've had my eye on luggage racks for a long time. The prices vary greatly. These racks are inexpensive and work as described. No complaints at all.

Lots of detail but I'm not very happy with the thread depth. They hardly go through circuit boards. I have another brand and they are about half the thread depth.

These are 3mm thread lengths so may not meet or meet your needs depending on your application. When attaching them to each other 3mm is fine but if you need the threads to poke through something to attach to the other side of the threads you can trim them down a bit where a 6mm thread would do better would work. In general this is good quality.

Beware of different choices. They all share the same name which reads M2 M3 but only one variant actually includes both sizes. That's Chinese too, not real American yellow brass. It is slightly magnetic, so has magnetic metal contaminants or can even be placed. This is typical for products from China.