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Quarter inch in metric?(thread size for tripod mount)

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Thread started 09 Apr 2007 (Monday) 11:26   
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perfect_pixel
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Hi,

Probably a really simple question but I've been to three DIY stores and can't find a bolt that will fit into the tripod mount on the bottom of my camera.

I know it is a standard quarter inch thread but can anyone tell me what I should be looking for in metric terms and how many threads per inch it is?

Thanks in advance :D!


Steve

Post #1, Apr 09, 2007 11:26:31



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Michael
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1 Inch is 2.54 cm, or 254 mm.

Post #2, Apr 09, 2007 11:28:43


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Michael
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So, you are looking for a 63.5mm thread??

Post #3, Apr 09, 2007 11:29:32


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cosworth
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The thread in all modern camera bottoms is 1/4 -20.

This is a very common bolt. You need to find a better store! Maybe your threads are damaged. A 1/4 -20 should go right in.

Post #4, Apr 09, 2007 11:31:19


people will always try to stop you doing the right thing if it is unconventional
Full frame and some primes.

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perfect_pixel
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Thanks for the quick replies...

So I would be looking (in metric terms) for a 63.5mm diameter bolt with 7.87 threads per centimetre (20 threads per inch)?

Does anyone know what this equates to in terms of M3, M4, M5, M6 or which of THESEexternal link it would be.

Something so simple and I am completely lost.....

The stores I tried were B&Q, Focus and Homebase I even took my grip along and opened the packets to try them at the first two. I was popular when I walked out with nothing :D!

Thanks again,

Steve

Post #5, Apr 09, 2007 11:46:56



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cosworth
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I'm not sure why you'd need a metric bolt since the threads in your camera are NOT metric.

Post #6, Apr 09, 2007 11:49:04


people will always try to stop you doing the right thing if it is unconventional
Full frame and some primes.

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JWright
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Having worked in the hardware department of a Home Depot here, I don't think there is a standard metric bolt that is an exact match for a 1/4-20 thread. My suggestion would be to see if you could order it from a US supplier on-line.

IMO, one of the dumbest things the United States ever did was NOT adopting the metric system...

Post #7, Apr 09, 2007 11:53:45 as a reply to perfect_pixel's post 6 minutes earlier.


John

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perfect_pixel
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cosworth wrote in post #3010785external link
I'm not sure why you'd need a metric bolt since the threads in your camera are NOT metric.

Because I live in a metric country where even market traders get fined for showing weights in imperial...:rolleyes:

Every bolt I have seen (even online) is described in metric and are what I assume are standardised sizes (i.e. the M4, M5 etc).

If I am completely missing the point then please tell me and if anyone can point me in the right direction for getting some then p l e a s e do - this is beginning to take over my life!!

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Steve

Post #8, Apr 09, 2007 11:59:43



"...Most things in life are moments of pleasure and a lifetime of embarrassment; photography is a moment of embarrassment and a lifetime of pleasure..." ~Tony Benn

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cosworth
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You are missing the point. I live in a metric coutry as well and it's DEAD EASY for me to find a 1/4- 20 bolt, nut etc. It's quite possibly the most common standard size.

I think you are looking in the wrong spot. Your local fasterner supplier will set you up. Maybe your local machine shop can point you in the right direction if you can't locate them in the phone book.

Post #9, Apr 09, 2007 12:08:38


people will always try to stop you doing the right thing if it is unconventional
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Jon
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Seriously, whether you're in a metric-only country or not, you're going to need to find a 1/4"-20 thread screw. There is no metric descriptor.

Post #10, Apr 09, 2007 12:27:25


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perfect_pixel
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Okay, thanks again for the help everyone. If there is no metric equivalent then I will try a smaller non-superstore-chain shop and see what they have - as Cosworth says I must be looking in the wrong place with the larger stores.

Thanks,

Steve

Post #11, Apr 09, 2007 12:34:45



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SimonG
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Sinkrate wrote in post #3010676external link
1 Inch is 2.54 cm, or 254 mm.

Close. It's 25.4 mm to an inch.

Post #12, Apr 09, 2007 12:45:09


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Nanscombe
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Hi Steve,

It may be a daft question, but ... why do you need a bolt to go into the Tripod mount of your camera?

You may be better off looking in camera stores, they will have all sorts of camera mountings, as you may find something that you can adapt. Something like a cheap quick release plate or the like in an oddments bin.

Or perhaps a boot fair.

Regards
Nigel

Post #13, Apr 09, 2007 13:36:50


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montreal
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SimonG wrote in post #3011106external link
Close. It's 25.4 mm to an inch.

:D I was about to say...

Post #14, Apr 09, 2007 13:48:21


5D - 17-40L, 70-200L f4, 50 f1.4, PowerShot A430

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alexlex
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Sinkrate wrote in post #3010676external link
1 Inch is 2.54 cm, or 254 mm.

:) :) :) u Ouisses needs to rework on some issues, nhf mate :)

Post #15, Apr 09, 2007 15:45:39


Canon / 5DII / TS-E 24L / 50 1.4 / 17-40L / 24-105L /

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Quarter inch in metric?(thread size for tripod mount)
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