Hi,
Does anyone know where I am able to source replacement trailing arm suspension bush bolts?
Or what size bolts may fit if these others need cutting off?

TIA

Hi SEARCH ePER on here

Being a suspension bolt, it will probably be grade 10.9. Standard bolts, available widely, are just 8.8, so should not be used where a higher grade has been specified originally.

The face of the head will be marked, 8.8 or 10.9, or possibly 12.9, but less likely.

Measure its diameter, and its length, then try here: https://www.westfieldfasteners.co.uk/BZP-10.9_ScrewBolt_HexHd_M10_THRpart.html

You need BZP (bright zinc plated), not stainless, as the best stainless is only equivalent to 8.8.
Get 10.9 nuts too.
You'll probably have to buy a pack of 5, but they're available, not too expensive, and the right quality.
Its a nice website, with some interesting information if you browse.