Oh good idea w threaded rod.If it 731-500 then yes. How many chicks are you getting? I have 12 Silkie under mine I went with the 732-500 which is the larger version of this I’m glad I did because the have space under it. I took 2 14x14 wire shelf’s and zip tied them together to make 14x20, then the heating pad hangs over 2” on each side creating an area they can snuggle into(like a hens wing). As for the legs I went with threaded rod, washers and nuts to make it easy to adjust. I had to already increase height it last night and they are a week old.
Yes, that's the model. 731 500. It will just be 4 chicks.