scope mount bolt - MIA

[baddabing]

Thanks both. No idea of make, but I'm guessing it'll be metric. What size would be standard for this?
PS interesting re the Exeter shop, sounds like a good place for a browse (albeit with the wife tutting in the background)

[baddabing]

Bolts are m4 and 8mm long, thought I'd been clever and ordered 5 for 99p from fleaBay - only for them to arrive today and the heads are too big (would be fine for the rail clamp). Anyway, went to CrackShot at Bovey Tracy this afternoon (ex-Ronnie Sunshine I believe), very helpful chap there found me one in his parts box gratis. Great service and will be going there again