In article
,
gcotterl wrote:

What is the thread pitch and size of a Schrader valve on an inner
tube?

Also, the metal pin in the middle of the valve is bent so it's very
difficult to inflate the tube. It's also preventing me from
unscrewing the valve core. How can I take the core out?

Check this:

http://www.google.com/search?q=Shrad...en&num=10&l r
=&ft=i&cr=&safe=images&tbs=

and this:

http://en.wikipedia.org/wiki/Schrader_valve

Erik