Between me and my B.I.L. we have had 5 tractors (Yanmar, JD, NH, LS and Kubota) and the only one to have a transport tie down is the Kubota B26. I suppose that may be because it is considered an industrial model and as such would be subjected to lots of hauling. The rest, have to chain over the axles or rear drawbar attachment or some other point as best one can find that wont damage the tractor. A word of advice on chaining or strapping over the front axles, make sure you don't bind any of the steering components. After you put the chains in place, before binding them down, take a close look to make sure that when they are tightened it wont be against any bendable or easily breakable part on the tractor.
Best advice given was look up your DOT regs. They are pretty clear and make sure any device, chain, strap etc is plainly marked with the grade on the chain and WLL on straps and binders. As for chain, if it isn't marked, it is assumed to be lowest grade made -GR40. I use Gr. 70 chain with ratchet binders for the tractor and then straps for the FEL and any other attachment. All components are rated as high or higher than 1/2 of the load weight.