UK source of small UNC nuts and bolts?

[Jules Richardson]

Tony Duell wrote:
> This is classiccmp-related in that I am repairing an old HP 
> 'Multiprogrammer' (a modular input/output system for HP2100s, HPIB 
> machines, etc). While dismantling it I had one screw shear off and had to 
> drill out pop-rivets holding a heatsink to the side casting.
> 
> So waht I am looking for is a source of small UNC nuts and bolts in 
> reasonable quantites. 'Small' means 4-40, 6-32 and 8-32. I would be 
> looking for countersunk and pan head scewws, nuts, lockwashers, etc. 
> 'Reasonable quantities' would be a bag of 100. These are not at all 
> common in the UK, we tend to use BA (older machines) or metric (M3/M4 
> sizes). 

Hmm, try Mackay's in Cambridge (01223 517000) - they're an engineering firm 
but also have a public store, and normally carry a good range (and are staffed 
by the sort of people who'll tell you who to contact if they don't have the 
thing in stock themselves). I used to use them for hardware odds and ends all 
the time.

Failing that, Apex Fasteners in Slough may be able to help (01753 525334) - 
the specialise in things like nuts and bolts, but it's been so long I don't 
remember if they carry UNC stuff or not.

If neither of those work  (and nobody else can help), shout and I'll ask some 
of the engineering types at Bletchley - I expect they'd know.

cheers

Jules