What bolts are used to fasten the back buildplate clamps?

[Speckles 1]

I have an UM2 extended that someone did modifications to. I am trying to revert the build plate back to the way it was and noticed the screws for the build plate clamps on the back two corners were missing when I purchased it years ago. 
I believe the UM2 guide for replacing clamps says they are lock nut and bolts.... but I cannot tell what size I am meant to purchase. Would anyone know? 

[Torgeir 207]

Hi @Speckles,

 

The screw used here is: 4 each 3 mm (diameter) X 8 mm (length) countersunk hex type (may also use Philips type).

The nut to be used: 4 each  3mm with nylon lock type.

I'm using SS (stainless steel) here..

 

The link to the assembly manual is here:

https://github.com/Ultimaker/Ultimaker2/blob/master/um2 assembly manual V1.1 _english.pdf

 

Thanks

Torgeir