The thread on this adjuster is standard M6X1mm - the total length is 26mm with a threaded section with a length of approx 18mm.

The nut and adjuster are slotted for easy fixing,  The knurled nut is approx 13mm.

A very useful adjuster suitable for throttle / clutch adjustment on a motorcycle or scooter. 

The top will take a 6mm OD outer cable