What is the thread on a bulkhead mounted RCA/Phono socket ?

What is the thread on a bulkhead mounted RCA/Phono socket ?

This topic has 9 replies, 7 voices, and was last updated 29 September 2016 at 08:55 by Alan Wood 4.

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28 September 2016 at 18:55 #258346
Alan Wood 4
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@alanwood4
It is close to 6mm / 0.25" and is not M6 fine or coarse but somewhere between these two. Doesn't appear to be UNF or BSF or BA. All engineering drawings found on the net so far do not specify what the thread is.

For something so common in the AV world there must be a standard ?
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28 September 2016 at 18:55 #24772
Alan Wood 4
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@alanwood4
28 September 2016 at 19:04 #258348
Brian Oldford
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@brianoldford70365
Ah! Standards. You can have as many as you want.
28 September 2016 at 19:10 #258349
Brian Oldford
Participant
@brianoldford70365
Joking apart; could it be one of the early sub 1/4" US threads shown here? https://sizes.com/tools/thread_american.htm
28 September 2016 at 19:21 #258352
Ed Duffner
Participant
@edduffner79357
Hi Alan, do you mean the guitar type or the Hifi type? One is phono, the other is RCA. Can you upload a photo?

Ed.
28 September 2016 at 19:24 #258354
Sandgrounder
Participant
@sandgrounder
A quick look on the RS Comps' website and they are shown as 1/4" – 36 NUEF, which I am assuming means National Unified Extra Fine?

John
28 September 2016 at 19:45 #258359
Jeff Dayman
Participant
@jeffdayman43397
Thread 1/4"-36 UNEF is commonly used on many telecom and RF connectors even now. NUEF is probably a typo – UNEF stands for unified national extra fine. JD
28 September 2016 at 19:46 #258360
john swift 1
Participant
@johnswift1
it looks like every one has their own standard

a chassis mounting phono socket with a 1/4"- 28 thread from Farnell

http://www.farnell.com/datasheets/1944140.pdf

or chassis mounting phono sockets with a 1/4" – 32 thread from Farnell

http://www.farnell.com/datasheets/1910868.pdf?_ga=1.63790508.2096815931.1475088858

http://www.farnell.com/cad/28985.pdf?_ga=1.62698287.2096815931.1475088858

John

Edited By john swift 1 on 28/09/2016 20:14:17
29 September 2016 at 04:21 #258393
Geoff Theasby
Participant
@geofftheasby
May I suggest a very useful standard? Don't use RCA/Phono connectors!

Geoff
29 September 2016 at 08:55 #258403
Alan Wood 4
Participant
@alanwood4
Thanks everyone, much appreciated. My project can proceed.
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