So I have the LR32 jig and I was going to use the 5mm screws but someone told me they don't work and that I needed 6.3mm screws. Anyone have any idea about this
You want what are referred to as "system screws" They are the correct diameter to pass through the holes in hardware such as hinges and drawer slides, but still grab the wood around the hole in the cabinet.
As Ken already posted system screws are what you want with your 5mm holes. System screws are 6.3mm in diameter and are meant to work with euro hinges and drawer slides. You may also see them called 5mm system screws or euro screws.
We have them where I work and I threw a pair of calipers on them and they were 6.2 so I think those will work alright...They are highpoint brand. thanks for the help everyone