what size thread for drain rods?

[glassescase]

I want to use my drain roads for another task but need a bolt to go into the end of one of the rods.
These are just domestic rods, sort you get from B&Q

Any idea what size thread they are? May even be left hand thread

Looks quite course

thanks glassescase

[glassescase]

no worries I no longer need to know. I have found a fitting I can use.


glassescase