Allen Key size

[Tony MartyrParticipant @tonymartyr14488]

I thought I had every allen-key known to man under 1/2" but I am currently defeated by one for tightening a set of 6BA grub-screws.

Can anyone help with the size? I am assuming they would be an imperial size but my sets don't seem to include the correct one.

Tony

[Tony MartyrParticipant @tonymartyr14488]

[JasonBModerator @jasonb]

0.050"

J

[AndyfParticipant @andyf]

I think 1.25mm is the smallest common metric Allen key, and would probably substitute for 0.05".  1.25mm = 0.0492", so less than 1 thou undersize.

Andy.

Edited By Andyf on 19/03/2013 18:44:36

[David LittlewoodParticipant @davidlittlewood51847]

If you have trouble finding one, you can get them (at a price!) from Slater's Plastikard; they are the standard size for fixing Slater's wheels on to O gauge locos.

**LINK**

I'm sure you could find them cheaper somewhere else though.

David

[Michael Cox 1Participant @michaelcox1]

Model Fixings (http://www.modelfixings.co.uk) stock 0.05" hex keys.

Mike

[JasonBModerator @jasonb]

Can't see why you would want to buy a metric substitute taht won't fit so well when 50thou keys are readily available

Try EKP, MSC, GS Supplies, Reeves, Bruce, Model Fixings etc

J&L/MSC are probably the cheapest with decent Eklind ones costing 9p

[Ian AbbottParticipant @ianabbott31222]

Grind a larger one down to size

Ian

[Anonymous]

There's nothing to say that the 6BA grub screws have a standard size hex hole, depending upon their provenance.

Regards,

Andrew

[JasonBModerator @jasonb]

Well I suppose we have to assume they are made to BS 2470 just as we would have to assume all other fixings are to the relevant british standard.

[Author]

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