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RK window thumbscrew

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RK window thumbscrew
Howard Wright Offline
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Location: Llandrindod Wells
Car type: 29 Special, 30 RK, 28 C Cab
#1
23-01-2019, 09:55 AM
Hi All

Could any kind person let me know what the shape and size of the thumbscrew that holds open the front window on the RK is?

I currently use a modern flat version (see below) but I'm not sure this is correct and think it should be a round knurled knob.  I know it is 1/4 whit but what size is the round knurled section?

Howard


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Ian Dunford Offline
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#2
23-01-2019, 11:11 AM
Mine is the same as an Opal/2/4 seater but it’s 600 miles away at the moment so I can’t photograph it just now. However knurled and round they are.Sorry.
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Parazine Offline
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Location: North Wiltshire
Car type: 1927 Chummy, 1938 Big Seven 1/2 a Trials Chummy
#3
23-01-2019, 02:52 PM
Here you go  Wink


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Parazine Offline
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Location: North Wiltshire
Car type: 1927 Chummy, 1938 Big Seven 1/2 a Trials Chummy
#4
23-01-2019, 08:07 PM
Forgot to mention, the thumbscrew is 7/8" diameter.
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Nick Lettington Offline
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Location: Essex
#5
23-01-2019, 09:01 PM
(23-01-2019, 11:11 AM)Ian Dunford Wrote: Mine is the same as an Opal/2/4 seater but it’s 600 miles away at the moment so I can’t photograph it just now. However knurled and round they are.Sorry.

   

But without the shoulder on my 4 seat ORT
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Howard Wright Offline
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Joined: May 2018 Posts: 2,104 Threads: 110
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Location: Llandrindod Wells
Car type: 29 Special, 30 RK, 28 C Cab
#6
23-01-2019, 09:12 PM
Thanks all

Super info. 

Both look as though they are (or have been) nickel plated?  I'll probably have a go at turning some stainless rather than go to the trouble of plating

Thanks again

Howard
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Peter Johnson Offline
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#7
23-01-2019, 09:44 PM
I think that I have a pair of original that I purchased on eBay with some other windscreen parts of you are interested. I’ll have a look in the garage.

On my saloon, the originals are steel and so the plate had rusted off, but were originally nickel plated (1929 RK Saloon)

Peter
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