NikonGear'23

Gear Talk => Lens Talk => Topic started by: ldi130 on January 03, 2025, 23:12:58

Title: grub screws/ set srews
Post by: ldi130 on January 03, 2025, 23:12:58

Anybody know what size the grub pr set screws are??? these arr screws typicall found in the front rings of manual focusing nikon lenses to keep objectives in place
ldi130

Title: Re: grub screws/ set srews
Post by: richardHaw on January 04, 2025, 04:27:28

M1.4 x 1.6 :o :o :o
eBay ::)

see richardhaw.com

Title: Re: grub screws/ set srews
Post by: ldi130 on January 05, 2025, 21:37:07

thanks richard.
I fixed many a lens with your videos of course. I am sure they have had also a big impact on many many other nikon owners.  I have one problem lens though: a nikon 135 f2 K lens.  Helicoids are great without the helicoid key in place. As soon I reinstall the helicoid key focusing is not as smooth as I prefer. I have not touched any of the helicoid key guides but I did notice one of the guides have two screws that probably used to set the guides.  Is it wise to try to readjust?