draw bar frame bolts---1945 model A

[Ray M Durham]

The draw bar on my 1945 model A is identical to the one on page 112 in the JD parts catalog. The 2 support brackets attach to the belly of the tractor with four 3/4 x 1 1/2 machine bolts. Each bracket requires 2 bolts. I need to know the description/specifics for the machine threads because my brackets have metal plates welded on for extra strength where the bolts go through. I need to get new bolts that are longer than the factory ones because of the plates that were welded on. Thanks!

 

[Rusty wheel]

Standard thread is ten threads per inch. 3/4-10. Fine thread is 3/4-16. Your bolts should be standard. I'd use at least a grade 8 bolt. Hope this helps.