@Turambar
Thanks. I had seen those ones from Craplin but need flat ones, since I'm attaching the motherboard to Lego so need a flat base to stick to the lego bricks. I suppose as per ZeBeeDee's suggestion I could cut the bases off, though I'm not sure how smooth the bottom will be if I do that. They're only a couple of quid and Craplin is only 10 minutes away on my bike, so I'll pop over tomorrow.
@ZeBeeDee
Thanks for the suggestion. I'll try the ones from Craplin first and if not will consider those. Though, don't you need an account to order from RS?
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moto