Am I being over cautious?

[texaxile]

I'm half way through an Impreza project, currently replacing suspension items for OEM.

I've decided to use genuine subaru bolts for the front suspension, as 2 of the fronts are Camber bolts and year specific, but the remaining 2 front are flange bolts (M13)

So, I've opted for 2 genuine Subaru front camber bolts (year and model specific) and 2 Subaru flange bolts all in at an eye watering £39.

The rears are also flange bolts M13 but come in at £40 for 4. That hurts a bit, question to the collective, can I use any M13 that meet the specs length and width?.

TIA and virtual singe malt to you all.

[hidetheelephants]

Good luck finding M13 fasteners of any kind off the shelf, definitely an oddball size. Are you sure they aren't a more common size?