Strut mounting bolts?
 

In realoem, it's hard to tell if these nuts and bolts are for top and bottom holes( same size). See pic below with arrows.
I am replacing the struts this summer and want to replace the nuts and bolts as well, heavily rusted.

Thx in advance.Attachment 79716

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I hope they are the same size since I never keep track the 6 times I've removed and replaced them ;-) I just drop on the ground and pick them up by chance.

Realoem should show the spec when you click on the part and if different sizes would have different part number.

Only showing 1 size,but as you see in the pic they are only showing bolt going through top hole.
I would go outside and have a closer look at mine bit to friggin cold . LolSent from my SM-G950W using Xoutpost.com mobile app

The strut tower uses two of those bolts and nuts they are pretty big like 16 mm bolt. The hex is about 22 mm maybe

https://uploads.tapatalk-cdn.com/202...6598aebdc7.jpg

If you tap on the parts they highlight.

https://uploads.tapatalk-cdn.com/202...e5602f53f6.jpg

Once you tap it will highlight in the list and show quantity (4).

(confirming that they are the same size and 16-1.5x65).

Perfect I see it now duh. Thanks to easy.Sent from my SM-G950W using Xoutpost.com mobile app

Having just replaced struts, I can confirm that they are the same size top/bottom.

Mine were heavily rusted as well, but I opted to only replace the self-locking nuts. The bolt is so big that some light cleaning with a rust pad had it looking pretty fresh.

Thanks, I will spray my bolts down with penetrating oil and have a better look at the bolts. We get tons of salt up here. The lock nuts I will definitely replace.Sent from my SM-G950W using Xoutpost.com mobile app

I live in the rust belt and never had a problem removing or reusing the part. Even the threads at the end if the bolt never caused any issues.

I'm pretty sure that like most bolts BMW official stance is replace.

With 20,000# clamping force and 50,000# shear force per bolt they are in in for the long haul.

I might just go with new lock nuts than. Thanks for the info.Sent from my SM-G950W using Xoutpost.com mobile app