Screw Size on Z carriage

Can someone tell me the size of the cap head screw that connects the Z carriage to the linear bearings? I was working on tramming my LongMill MK2.5 and stripped the heads of two screws. I circled the ones I am referring to below. Thanks.

@dam4 The Onshape drawings are found here: Onshape

That hole is shown having a 3.25mm diameter. If it’s a threaded hole, it would be for an M4 screw. If it’s not threaded, likely for an M3 screw. I don’t know the length but you might be able to get it from the drawings. Kinda hard to do it from my phone.

@dam4 looks like M3-12

Thank you. I appreciate your quick response.

@Chucky_ott do you by chance have a link to the Altmill 4x4 Onshape drawings? Didn’t even realize these existed.

@Karver_One

@Chucky_ott thank you very much! Great stuff.