I have a 3/4" threaded bulk head (typical black kind that you get at the lfs) and a male nylon screw that I bought from homedepot (one side is male thread and the other side is barbed). I am planning on screwing in the threaded end of the nylon screw into the bulk head. It needs to hold pressure. I was thinking about using glue instead of Teflon tape to bead the thread. Can anyone suggest a glue that will do the trick? Or threading it with teflon is enough to prevent leak. I was reading some forums where they were suggesting Surehold Plastic Surgery. any suggestion would be greatly appreciated. thanks