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M.E. thread screws wanted

Looking for a supplier of M.E. screws

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ken king, King Design13/01/2014 14:00:34
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144 forum posts
239 photos

Does anyone know of a supplier of M.E. thread steel setscrews, specifically ⅛" x 40? I need a couple of different lengths in fairly small quantities. Any suggestions gratefully received.

John Baguley13/01/2014 14:06:00
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489 forum posts
51 photos

I think 1/8" x 40 ME is the same as 1/8" BSW so try looking for those instead?

John

Harry Wilkes13/01/2014 15:01:01
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1178 forum posts
64 photos

These are as good as any https://ekpsupplies.com/screws-and-studs/cat_2.html

HomeUse14/01/2014 09:20:46
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168 forum posts
12 photos

I understand that ME threads are based on the BSW thread form so 1/8 x 40 and 5/32 x 32 are the same in both types (for the critical their could be a slight difference in the "Crest and Root" -

roy entwistle14/01/2014 15:48:17
1411 forum posts

Hi folks 26 tpi are used extensively on brass and also on cycles as I understand

Roy

ken king, King Design14/01/2014 19:02:53
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144 forum posts
239 photos

Reply to Michael, they are needed to fit existing tapped holes in cylinder head and crankcase of a model aero engine, and there's not enough meat to rethread with an alternative.

JasonB14/01/2014 19:11:17
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21468 forum posts
2455 photos
1 articles

May just be easier to buy a bit of hex bar and a die and make your own, can't be that many in a small aero engine.

I wonder if you could get away with using 5-40 UNC which are 0.125" - 40tpi and at that size I doubt the 5 degree difference in thread angle will make a difference, even if it did you should be OK to tap with a UNC tap. Model fixings do 5-40 cap heads. If its an american engine than thats likely to be what was used anyway.

 

J

Edited By JasonB on 14/01/2014 19:18:49

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