The ART-9XA has a threaded body for easy screw mounting with no nuts!
https://www.hardtofindhifi.com/catalog/product/view/id/885/s/audio-technica-at-art9xa/category/62/
https://www.hardtofindhifi.com/catalog/product/view/id/885/s/audio-technica-at-art9xa/category/62/