spent 10 mins fiddling with the drive before I realized I needed a screw to secure it. Spent 10 mins trying progressively smaller screws. Got fed up and used two riser mounts to "secure" it. Immediately afterward while looking for a bracket, found an m.2 screw unrelated to this drive that I forgot I had.
And then of fucking course the tiny little bastard fell onto the carpet.
I no longer feel such a strong need for an m.2 drive for myself due to that stupidly tiny specific screw.
They're not a standard size at all, nothing else in desktops and laptops alike use that screw. Sometimes a screw comes with the device, sometimes it doesn't. It's a crapshoot and the weirdest feature of modern computers, imo.
EDIT: FWIW, I've used mounting tape to hold the pricks down.