6-hole eyepiece different thread?

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   I have 2 of the P-H 6-hole eyepieces, one came with & fits into my A.G. Parker No9W. It interchanges with the "target" windage adjustable P-H sight too.
The other came with & fits into the thread adapter in the Central.

But they do not interchange!

Anybody ever heard of this?
They look identical at first glance but then you realize one has a short cylindrical tube over the base of the threaded part & the thread stops short.
The other has no collar & is fully threaded!
If you do the thread check with the meshing screws they do not match but its so slight its barely visible to the naked eye!
I have to dig up my single aperture one & see which variety it is now?
Any thoughts?

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Shamu Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 20510	Post Options Post Reply Quote Shamu Report Post Thanks(0) Quote Reply Topic: 6-hole eyepiece different thread? Posted: June 12 2022 at 12:21pm
	I have 2 of the P-H 6-hole eyepieces, one came with & fits into my A.G. Parker No9W. It interchanges with the "target" windage adjustable P-H sight too. The other came with & fits into the thread adapter in the Central. But they do not interchange! Anybody ever heard of this? They look identical at first glance but then you realize one has a short cylindrical tube over the base of the threaded part & the thread stops short. The other has no collar & is fully threaded! If you do the thread check with the meshing screws they do not match but its so slight its barely visible to the naked eye! I have to dig up my single aperture one & see which variety it is now? Any thoughts?
	Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)

britrifles Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: February 03 2018 Location: Georgia, USA Status: Offline Points: 8404	Post Options Post Reply Quote britrifles Report Post Thanks(0) Quote Reply Posted: June 12 2022 at 1:44pm
	Shamu, are the threads different (different thread standard)? Isn’t Central a Australian company? Not sure what thread standard they may have used.

Shamu Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 20510	Post Options Post Reply Quote Shamu Report Post Thanks(0) Quote Reply Posted: June 12 2022 at 3:16pm
	Yes they are. & smart too! It comes with the biggest threaded hole commonly used, the German Centra or Gehmann (I know) but it goes to the "standard" P-H tapered thread (or any other) depending on the adapter you buy. The short knurled cylinder is the adapter. It goes from the Central's Female 9.5mm "large" standard to the smaller 7/32" male ones.
	Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)

Enfield trader Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: May 11 2006 Location: United States Status: Offline Points: 923	Post Options Post Reply Quote Enfield trader Report Post Thanks(0) Quote Reply Posted: June 12 2022 at 6:04pm
	I’d have to see pics - I know there is a adapter to fit the German Anschutz eyepiece that screws on the Parker Hale eyepieces. Got pics to share ?

Shamu Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 20510	Post Options Post Reply Quote Shamu Report Post Thanks(0) Quote Reply Posted: June 12 2022 at 6:31pm
	Not yet, but I will have tomorrow! added to post above
	Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)