Hoselock fittings, still doing battle

[foxhole]

My female fittings screw on until they hit the sealing washer, remove the washer and they easily screw on further. The male adaptors, will not screw into the females more than a couple of turns. These are three different adaptors, all from my box of a motley collection of hozelock type fittings and adaptors.

There are fine thread and coarse thread version of adapter, sounds like you are trying to fit a course thread into a fine .

 

[Harry Bloomfield]

There are fine thread and coarse thread version of adapter, sounds like you are trying to fit a course thread into a fine .

Maybe, I have now taken the chance of ordering some, which claim to be 3/4 BSP, so I'll find out, when they arrive.

 

[Harry Bloomfield]

Maybe, I have now taken the chance of ordering some, which claim to be 3/4 BSP, so I'll find out, when they arrive.

They have just arrived, and they screw in absolutely perfectly. Comparing to the ones which jam part way in, I cannot see the slightest difference at all, in pitch thread, depth, or taper.

 

[CBW]

They have just arrived, and they screw in absolutely perfectly. Comparing to the ones which jam part way in, I cannot see the slightest difference at all, in pitch thread, depth, or taper.

Could just be manufacturing process? Glad you’re sorted.