I got some from Pro-Bolt so expensive but good. Here are the sizes you need. 2 are M8 (x1.25mm) 15mm long, the other side are M8 (x1.25mm) 25mm long as they secure the exhaust hanger. Those specs are copied from the Pro-Bolt invoice. I got the black anodised ones and with VAT thats ?20.70. Defo you could do it cheaper by buying normal socket head bolts to those sizes
Hi mate what size are the bolts you ordered off eBay.