I need to cap a waste pipe, temporarily. We're replacing the flooring in our kitchen and I've disconnected the dishwasher and want to cap the trap so we can still use the sink.

Under the sink there's normal 40mm plastic waste fittings and the dishwasher screws onto an 'appliance trap' connection https://mcalpineplumbing.com/traps/domestic-appliance-traps-accessories/sink-trap-with-domestic-appliance-inlet/ I've unscrewed the fitting and removed the whole fitting on the left of the photo. I need a blanking cap that can be screwed on in place of that screw cap but I'm not sure what to buy? I bought a McAlpine T23U Multifit Blanking Plug White 40mm but that seems to be designed to fit onto a plain 40mm pipe, not onto a 40mm pipe with a male threaded end.

I'm curious if there's a cap that's designed to screw on in this situation, or do I just need a short length of plain 40mm pipe?

Bit of clingfilm over the end and plenty of duct tape. There is not going to be any pressure on it so no need for anything else.

Thanks all. I went with a short length of pipe that I happened to find lying around :)