Can someone please tell me the size of these bolts and can I still get them from MB? Installed new Sachs shocks last year, didn't use locktite and had the two on the passenger side back out.

Was hoping I could still buy from MB, i think the 12pt head made it easy to install. But need to fix this asap, might just run down to the hardware store and buy some bolts.

Thanks for any help...