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| sbwhart:
Can any one point me in the direction of these screws No.8 ANF (American National Fine) semi - countersunk head, allen cap screw O/D = 0.162" Core = 0.130" Pitch = 0.0277 Overall length 8mm, but a little longer would not go amiss as they could always be cut down to size. Cheers Stew |
| andyf:
The figures here http://homepages.tesco.net/~A10bsa/unfgo.htm for no. 8 UNF are 36tpi/0.164" pitch, major 0.164", minor (for external threads) 0.1299", which is effectively the same. "UNF" might cause less headscratching than "ANF" here in the UK, but I've no idea where you might get them, particularly with such special heads. Andy PS 36 tpi = 0.705mm pitch. An M4 thread has a pitch of 0.700mm, which is probably near enough. For the major diameter, 4mm = 0.157", which is about 7 thou undersize for an existing No 8 ANF/UNF threaded hole. The minor diameter is similarly undersize. Might M4 be sufficiently close to give a reasonable fit? |
| sbwhart:
Thanks for the info Andy I'll give it a try. Stew |
| HS93:
Pop an email to this chap he can someimes help and is very fast cheap and so is the delivery so small orders are not going to cost the earth , he may be able to help, he did when I wanted some stange bolts http://www.modelfixings.co.uk/cap_screws.htm Peter |
| John Rudd:
Yup, another vote for Modelfixings...Quick delivery and excellent service/choice. Well worth asking them.... |
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