help with older Toro part number

[bassontap]

Hi, I'm looking for some shear pins for a Ber-vac snowblower attachment that I bought with my Wheelhorse 520H from the local Toro dealer. Toro part number 115086. I'm having trouble locating them. The site I used shows nothing. Has the number changed or been replaced by another? Grade 5 bolt about 2 1/4" long with washer and nut. Thanks Dave

 

[bjcsc]

I found it listed as NLA. If you know the specs, why not just hit a hardware store?