I've fitted all my traveller tracks by bolting the track to the beam and taping a ring spanner to a batten.
I put a small piece of tape in the ring and press the nyloc nut in. Then sit a washer on top and duralac on top of the washer to prevent a corrosion between the beam and washer.
It takes a steady hand some patience and an assistant to make this happen.
The invent of the electrc screw driver was a godsend for this job.
BTW:- I've just taped the spanner to the batten with masking tape and never had a problem.