There seems to be confusion on what screws go where in a big box Amiga (A2000/3000/4000), so I would like to start a reference dialog on this. Once a hole is stripped with too large a screw (most commonly a 6-32 is shoved into an M3), the hole is ruined. It can be tapped larger, but not smaller.
For the outside case of the A2000/3000 the metric M4 screw is used (NEVER the coarse 6-32 so common on PC cases).
On the A4000D the three (3) outside screws on the back (2 for the case and one for the PSU) are metric M3 screws.
The A4000T being an adapted PC case (Enlight AT Tower) it uses the common 6-32 screws (both inside and outside)
-------
The inside of the A2000 uses several M4 screws to hold the PSU cradle in place.
The inside of the A4000D uses M3 screws for the front drive cradle, and daughterboard support beam, as well back HDD cradle. The HDD's themselves used 6-32's (for the most part), but the floppy and CD Drives use M3's. The A4000D's motherboard uses M3 screws to hold it in place on the metal base.
--------
I haven't been in the case of an A3000 in 3 years, and there are several other types of screws that may be used at some point, so please chip in and help those of us repairing/restoring/refurbishing our sweet babies.
Thank you
