"Dave Plowman (News)" wrote in message
...
In article ,
Peter Taylor wrote:
Can I use a 3/8"-20 BSW bolt in 3/8"-20 UNC thread? I'm making an
adapter plate for my theodolite tripod so I can mount a camera or
spotting scope. The tripod screw is 5/8" UNC and I've managed to source
the drill and taps for this end of the plate. But at the other end,
the tripod head has a 3/8" UNC socket and I need a bolt to screw into
it. Just one. There are only about 5 turns in the socket.

The only UNC bolts I can find on Ebay are from USA and the postage is
£27! So can I cheat and use a BSW bolt?

http://www.namrick.co.uk/acatalog/Ho..._Screw_10.html

Thanks Dave, I forgot to mention it needs to be brass.