Where can I buy fine/small clips and screws for a mirror?

[Collier]

I'm putting a new back on a mirror for my girlfriend, but the original metal parts are a write-off. The attached pictures shows:
1) Clip top elevation
2) Clip side elevation
3) Screw

These are small parts and neither Wickes nor Screwfix have anything that small.

Can anyone help me with a place to buy these fine parts?

Thanks!

 

[squib]

You could try these guys, they have most bits.

http://www.lionpic.co.uk/hardware-suppl ... dware.aspx