Screw in battery end cap?

[redbull456]

Hello everyone im a newbie to this forum (or any forum)
Im also new to the DIY world and I found myself stuck looking for a site that sells the screw in battery door (the type that can be screwed in with a coin. Honestly I dont even know what they are called. Any idea where I can find these??? Edit- I also need the female fittings for it.

 

[georgemeadal]

Post a pic of the mod or tube you are trying to work with might help us help you.

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