XPS 400 / DIMENSION 9150 MB THREADED INSERTS

Your expertise, please...

The massive heat sink shroud has two screws at either side to fix it to threaded inserts in the motherboard.  Due to periodic removal for cleaning, the threads in one of the sockets became stripped and I can no longer tighten the screw. Hell...!

I had various ideas as follows:

1. Tap new threads in the two motherboard and use new, larger screws. But the motherboard is Mica and I don't think the flimsy aluminum coating to the sockets would take a larger thread.

2. Apply Plumber's Teflon thread tape to the screw for the damaged socket.

3. Lightly coat the inside of the damaged socket with Araldite and after its hardened pray that the self-tapping screw will cut a new thread.

4. Remove the motherboard, bond a nut underneath each threaded socket, replace the two self-tapping screws in the heat sink shroud with longer matching bolts. 

I searched the Internet for a solution but came up blank.

Has anyone experienced this problem and have a proven solution, please?

Thanks. :emotion-10: