Hello, I replaced the belt tensioner shock after seeing the bushing was gone. The shock had rattled and wore the lower bolt halfway through. I cannot find a replacement 11mm bolt anywhere. Does anyone know where this bolt could be found? Thanks in advance!

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1996 E300D

This one? https://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2016.cgi?command=DWsearch&description=914008-007000