Question Asrock Z390 Phantom Gaming 4-CB M.2 SSD

[ebiil]

I purchased a prebuilt that I customized a little bit, and seem to not have the screws to secure my SSD in place (bought it afterwards as an upgrade). Although I read it works without being secured, I don't want to risk that. Does anyone know the correct screw size needed? I've been reading a lot and the sizes seem to differ so I don't want to go out of my way and get the wrong one.

 

[Calvin7]

https://www.ebay.com/i/163570334254?chn=ps