Review on Sscon M3X4 8Mm Phillips Machine Computer by Paul Wilson

This screw is listed as an M3 screw when it is actually a 6#-32 Phillips hard drive screw. M3 is used for 3.5 drives and motherboards while M# is used for optical, floppy and 2.5 drives. Now I have to buy another bag because the seller cannot verify his item. A little quality control wouldn't hurt. Even the bag it was in was marked M3. The silver screw is the real M3 and the black one I bought is marked M3. The difference in carving is very obvious. I gave 2 stars as they work really well as a 3.5 screw. Only reason not to return.