what size u-bolts for 7 1/4?

[coffeedart67]

Going to replace my 7 1/4 with a 7 1/4(just a stopgap, for the time being)what size u bolts do I need to find and where?
Thanks
aaron

 

[RustyRatRod]

I have a set of u bolts and plates if you're interested. I can do 50 shipped.