A very common version of the Assembly using the bolted connection; round nut having auxiliary external thread, screwed into a prepared wood hole (nest).
When the pipe Assembly in such a nest prior “cutting” the thread can be depicted in figure method, picking the appropriate bolt having the same thread.
Recommend to read
THE KEY FOR “LAMB”
It happens that the nut-"lamb" cannot be unscrewed by hand. Will come with original key from the segment of steel pipe with diametrical cuts.
SERIES P: SEARCH CONTINUES
The work of our circle of technical creativity at the Polytechnic of light industry does the city have repeatedly told on the pages of "M-K." At the last such publication number 2 for...
