I'm having some fun playing around with a furniture project where I'm using some black pipe as the legs. Things are working out fairly well (well, I think so, even though my wife thinks it's ridiculous...I guess this is going in my office...)
The one snag is that while I have all the joints tight as can be without stripping, I had to back off a quarter turn or so on some of them to get things aligned. These connections aren't as rigid as I'd like and with some pressure, it's easy to turn it given the leverage enabled by the design.
Is there good way to 'lock' the joint in the position I want short of spot welding? Would a few drops of superglue down the connection do it? Should I solder it? another product?