M42-Nikon Adapter Ring with Glass. Quality Test. Lensbeam
M42 Lens to Nikon AI F mount camera adapter with glass focus to infinity +2cap | eBay
Generic M42 - Nikon F (M42-NIK) Adapter – Kamerastore
Urth M42 to Nikon Z Lens Mount Adapter | Urth US
Amazon.com : Urth Lens Mount Adapter: Compatible for Nikon F Camera Body to M42 Lens (with Optical Glass) : Electronics
Fotasy M42 42mm Screw Mount Lens to Nikon Z Mount Macro Focusing Helic – RainbowImaging
K&F Concept M10171 M42 Lenses to Nikon F Lens Mount Adapter with Optic Glass - KENTFAITH
Amazon.com : Fotasy Adjustable M42 Lens to Nikkor Z Mount Adapter, M42 Z Mount, fits M42 42mm Screw Mount Helios Lense, Compatible with Nikon Z Mount Mirrorless Camera Z30 Z50 Z5 Z6