Prusa I3 top z 8mm rod and 698zz bearing bracket 17mm spacing

UPDATE

I apologise for not mentioning as i found out myself which i forgot that these are m4 not m3, when i got my frame cut 4 yrs ago the dxf was set at 3mm so i had to tap my frame out to m4, i also added the bottom brackets too as i had to change them to m4 as i found out after trying the m3 ones. used fusion 360 change the mesh to brep then went to patch merged as much of the triangles to make a better solid, then i sketched onto the plane

Only seen today theres another bracket the s