[pure-silver] Re: messed-up threads on tripod head

  • From: Jean-David Beyer <jeandavid8@xxxxxxxxxxx>
  • To: pure-silver@xxxxxxxxxxxxx
  • Date: Wed, 18 Jun 2014 22:36:30 -0400

On 06/18/2014 09:16 PM, Richard Knoppow wrote:

>     Most tripod screws are 1/4-20, that means 1/4 inch diameter and 20
> threads per inch, a standard size.  You If you can get the screw out of
> the hole run a tap into the hole as advised by others. You can get a tap
> at any hardware store plus you may need to get a tap wrench. You may
> want to bring the thing to the store. The tap should be lubricated with
> light oil. Work turn the tap in slowly and work it back and forth while
> going further in. That will straighten the hole.  The screw may also
> need treatment. See if it will thread into a 1/4-20 nut easily. If not
> you will need to get a 1/4-20 die. That is the opposite of the tap and
> cuts threads on the male part.  Used much the same way as the tap, work
> it slowly a little at a time with some light oil lubricant.  These are
> not particularly expensive tools and will last a long time if used with
> a bit of care. Some old fashioned hardware stores may just do the job
> for you.

One of my cameras has two threads. The normal 1/4"-20 and also a larger
3/8-16 thread. It is a Wisner Technical Field 4"x5" camera. I prefer
using the larger bolt in this camera. The tripod and head are Gitzo, and
the Gitzo head comes with both size bolts.

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