CO Plug / Strainer Adapter Help

[rburditt]

hi,
i am working on plumbing in '65 safari and have a question about the "strainer adapter." or at least that seems to be what is called based on a little web searching. it is the piece that sits under the drain of the bowl of the sink. originally these were glued ABS fittings. my question is what are people using these days. just your standard CO Plug that can be found in hardware stores which have a screw type fitting that connects it to the drain pipe?? is it necessary to have a glued fitting under the sink? i'd love to hear how some of you have handled this?

thx,
bob