All main columns are threaded M8 x 1.25mm and are interchangeable with Kennedy, Oxford, Mitutoyo etc. base units except mini-mag (M6 x 1mm) also suitable for incorporating into special fixtures or threaded pot magnets. Heavy Duty Fitment - Plain Fitted as standard to E905 2 Mag Universal Stand and E908 4 Mag Universal Stand. Column: 12 x 175mm. Cross bar: 10 x 165mm. Threaded: M8 x 1.25mm.