Tow ball bolts

[solarman216]

Hi all, I have a 4 bolt tow ball, anyone any idea what numbers should be on the bolts for this job, the ones I have are unreadable so need to renew them, I have a feeling it is 8.8 but knowing my memory could well be way out, and as I tow to the max they need to be correct, Rick

 

[Lincs Mav]

Just checked mine they are stamped 8.8

 

[solarman216]

Just checked mine they are stamped 8.8

Thank you very much, I will source 4 on Monday, regards Rick