Get a set of security tips with handle at Harbor Freight! Take the drive with you.
There's different patterns, I've had to get a small 5 bladed "cross-tip" before.
The intent of having those fasteners is only an incitement.
You're NEVER going to put the drive back together. This is Salvage.
You have 2 quarter-circle supermagnets arranged to move the very light read heads extremely fast and accurate at the same time. The same might mimic a muscle.
There are many HD salvage videos on youtube and Delphi used to have an Electronics Salvage Forum IIRC. Tons of how-to on those.
The last HDD I bought was a 500G for like $40 in 2017.