Fotasy Adjustable M42 42mm Screw Mount Lens to Nikon Z Mount Mirrorless Camera Adapter, Compatible with M42 Lens & Nikon Mirrorless Z5 Z50 Z6 Z7 Z6II Z7II Z fc Z9 - Walmart.com
ZENITH Helios 44m (M42) to Nikon F Mount Conversion. : 15 Steps - Instructables
Amazon.com : Fotodiox Lens Mount Adapter Compatible with M42 Type 1 Lenses to Nikon F-Mount Cameras : Electronics