Author Topic: UK GPO 746 21FA dial finger stop screws  (Read 812 times)

Offline royalbox

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UK GPO 746 21FA dial finger stop screws
« on: December 12, 2016, 04:36:07 PM »
Hello, first post. I'm in the UK and am restoring a couple of GPO 746 telephones as a hobby and to use at home.

I have some minor annoying dial problems, but the main one is that one dial has no finger stop. I have a finger stop from another "parts" dial, but this is a much later and cheaper all plastic dial that uses just one screw of a different size and thread. This dial requires 2 screws. It's a 21FA from 1972.

The total length including the head is about 14.6mm but I don't know about the thread pitch or whatever and the width is hard to measure. I assume the size I require will be imperial.

Can anyone help identity the screws I require? Many thanks.

Barry.

Online twocvbloke

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #1 on: December 12, 2016, 05:24:42 PM »
Hi, the screws you're after are 8BA 1/2 Inch type screws, this site offers them at 16p a screw or 1.65 for 10 (plus 2.50 p&p on either option):

http://www.ba-bolts.co.uk/steelcsk.html

Offline royalbox

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #2 on: December 12, 2016, 05:50:16 PM »
Thanks a lot! I didn't expect to get a reply on this, that's really helpful.
Barry.

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #3 on: December 12, 2016, 05:57:02 PM »
No problem, to be honest I almost gave up and was about to suggest to try finding another dial for parts, but then thought I'd look on Sam Hallas' website (where he documented taking a 706 to bits, same 21-type dial) and he actually noted the 8BA screw type for the finger-stop, which was lucky to say the least!!  ;D

http://www.samhallas.co.uk/collection/bits_706_2.htm

Glad it's been helpful... :)

Offline royalbox

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #4 on: December 12, 2016, 06:12:01 PM »
I've read his "taking a 746 to bits" but not the 706 so missed that. Thanks again for pointing that out.
Barry.

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #5 on: December 12, 2016, 07:48:41 PM »
It's amazing what info gets stored away in the brain that slowly returns to the surface, I knew I'd read about it somewhere so went through all the british phone-related sites I know of, and got there in the end with Sam Hallas' site... :)

Offline royalbox

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #6 on: December 28, 2016, 12:44:07 PM »
Got some 8BA screws, 99p for 10 on ebay, but 1/2" is too short. Will need 5/8" I think. I can't find any at the moment at a reasonable price at the moment. Will keep looking.

Online twocvbloke

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #7 on: December 28, 2016, 01:23:22 PM »
You could probably get some 1" screws from the above site and with some careful use of a hacksaw and a file/sandpaper (to smooth off the cut end) you could make a 5/8ths screw... :)

Offline royalbox

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #8 on: December 30, 2016, 11:27:27 AM »
You could probably get some 1" screws from the above site and with some careful use of a hacksaw and a file/sandpaper (to smooth off the cut end) you could make a 5/8ths screw... :)
Thanks, yes I could do that. I got the dial for about 7.50 inc postage I think so it's hard to justify half that again for a couple of screws so I'll keep checking to see if anything comes up cheaper on ebay for a while.

Thanks again,
Barry.

Offline LarryInMichigan

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #9 on: December 30, 2016, 11:32:11 AM »
I would think that a good hardware shop would have something that would fit.  I often take things to a hardware store in the area which has a large assortment of fasteners and other stuff and ask one of the sales people to find me a screw or whatever that will work.

Larry

Offline Jim S.

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Re: UK GPO 746 21FA dial finger stop screws
« Reply #10 on: December 30, 2016, 11:37:36 AM »
Thanks, yes I could do that. I got the dial for about 7.50 inc postage I think so it's hard to justify half that again for a couple of screws so I'll keep checking to see if anything comes up cheaper on ebay for a while.

Thanks again,
Barry.

If you decide to cut screws, Put a nut on it first, after you cut the screw, take off the nut, this will clean up the "cut threads"
JMO,
Jim S.
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You die, you forget it all.