Tiller Should I mount a coulter using shear bolts?

[scobrado]

I bought a used 3 point Priefert bottom plow. I have ground with some blackberry roots, so I also bought a separate used coulter. The plow's moldboard is about 14" So I bought a coulter of 14" diameter with scalloped edges.

The coulter came with a mounting bracket, but I need two 1/2" bolts that pass through a 1" thick beam that runs parallel to the plow direction.

Should I buy shear bolts? If so, what rating? Or should I buy regular steel or hardened steel?

Thanks for the help.

--ScoBraDo

 

[scobrado]

I bought regular steel bolts at the hardware store. Maybe I'm over thinking this. I just don't want to break the linkage on my tractor.

Let me know if you have any insight into this issue. Thanks.