Probably are these one?:
https://www.amazon.co.uk/Lian-Li-PT-JT03-Front-Panel-Halterungen/dp/B016212UA8
I've found those too. But to me they do look a bit to tall compared to the original ones from the Dan case. Thought about buying a set just to check since the price I found was just about $5 for a set of 4. But with shipping and toll I am looking at $40ish for a set containing 4 pcs.. Kinda steep