Threading for DIY mechanical mod

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ayopassthat

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Jul 1, 2014
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New York, New York, USA
Hello all! I am building a tube mechanical mod from wood and the one thing holding me up is the threading for the bottom cap/firing button. I have a wooden tube fitted to an 18650 battery and need threads for the inside. Do you know what size the threads are? The inner diameter is 3/4" and I know the threads are relatively fine. Where can I buy these inner threads (basically a short metal tube with threads on the inside)? If there is no such thing I will buy a tap/die set and do it myself. Also is there anywhere that sells firing buttons that would fit this? I would like to have some kind of locking mechanism and I do not have access to a metal machine shop. There are a lot of questions here but any help would be greatly appreciated. Thank you!
 
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