That's good! I tried Tractor Supply which sells the Bush Hog Squealer and they were not able to find the part number so I did as you said and got a "quality" bolt from china. It's holding in there for now.
Looking for the part number on the Bush Hog site is interesting in that they never show the shear pin in the exploded view, but I started looking through the parts and found "Shear Bolts" listed that were not the same size as mine. I did find one (part number 68297) that just said shear pin with no dimensions on it. I think that mine is 7/16th in diameter instead of 3/8 (the bolt I am using is 3/8ths but I think that the hole is slightly larger). Apparently there were several drive shafts that were shear pin before they moved to the clutch models.
Thanks for the help.
Looking for the part number on the Bush Hog site is interesting in that they never show the shear pin in the exploded view, but I started looking through the parts and found "Shear Bolts" listed that were not the same size as mine. I did find one (part number 68297) that just said shear pin with no dimensions on it. I think that mine is 7/16th in diameter instead of 3/8 (the bolt I am using is 3/8ths but I think that the hole is slightly larger). Apparently there were several drive shafts that were shear pin before they moved to the clutch models.
Thanks for the help.