Tripod mounting threads

Started Mar 13, 2013 | Discussions thread
MisterBG Veteran Member • Posts: 6,024
Re: Tripod mounting threads

mbernard wrote:

There are two standard tripod screw threads:

a 1/4-20 UNC and 3/8-16 UNC (20 means 20 threads per inch, 16 - 16 threads per inch)

You can find more about these threads here (ISO standards):

Both threads are also the same pitch as the old UK "Whitworth" thread form, 20 TPI for 1/4 inch and 16 TPI for 3/8 inch.
If your engineer friend has a stock of old Whitworth taps and dies he should be able to use those.

-- hide signature --

>The only way of discovering the limits of the possible is to venture a little way past them into the impossible.

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow