very large saw nut assembly

[Frank S]

There may be another name for them, but I only heard things like this called saw nuts or spool bolt & nut T nut sorta fits I guess

It is a 3 piece assembly which will be the pivot point for the scissor arms on the machine I am prototyping
1 inch main body OD 1 3/8" long with a 1 1/2" dia. flange drilled and counter bored to allow the nut to be mated inside the bore to a recessed socket head cap screw