You don’t specify your location funnyturn, if you just want nuts and bolts, B&Q have a selection. If you have a look in your “Thomson local” for “Bolt and Nut suppliers” or “Engineers tool supliers” you may be delightfully surprised how close one may be. And before the smart ar*es jump in, by GOING to a supplier you invariably get a BETTER deal than buying X off @ Y price.
Once some of them realise that an eccentric (Muddle ingineer) is frequenting the place, they take pity and give you a MUCH better deal.
Regards Ian.