From screws to hinges and magnets (Case mod)

Solution

Try spring loaded latches that snap in. Some TV/Stereo stands have them to secure the glass door shut. They are totally mechanical devices. Similar in principle to the fastening snaps on a leather jacket.

Try spring loaded latches that snap in. Some TV/Stereo stands have them to secure the glass door shut. They are totally mechanical devices. Similar in principle to the fastening snaps on a leather jacket.
 
Solution
Just a comment.
The magnets you use to latch a door could be placed directly on a HDD and not effect it.
The "3ft" rule applied to CRT monitors where the magnetic field would effect the electon beam.
The magnetic field strenght to change a HDD platter domain is reailly quite strong do to being closer than the dia of a hair.
 

I just used a number and stated 3 feet. And yes I am aware of the head clearance on HDDs. I did some tech consulting work for the manufacture of suspension arms for a company that has 80% of the worldwide HDD suspension market. A few years ago the head clearances were around 0.0004", and my die clearances were 0.000050" (This is not proprietary information, so I don't mind disclosing it).