+ Reply to Thread
Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 30

Thread: No32 Mk3 Thread question.

Click here to increase the font size Click here to reduce the font size
  1. #1
    Advisory Panel
    Roger Payne's Avatar
    Join Date
    Mar 2008
    Last On
    03-20-2024 @ 06:05 AM
    Location
    Sutton Coldfield, UK.
    Posts
    3,429
    Real Name
    Roger Payne
    Local Date
    03-29-2024
    Local Time
    12:10 AM

    No32 Mk3 Thread question.

    I am currently getting ready to rebuild several No32 Mk3 scopes, but I am short of some of the 'cap & plug' screws that locate the brass shoes which in turn locate the grat block for the purposes of eliminating backlash. I had assumed they may well be the same as the thread on the screw that fits into the bottom of the clicker plunger housing on Mk1 & Mk2 scopes (1/4" Model Engineer), but it isn't, it's a little larger. At a WAG I think it could be 9/32" ME, although even then there is both a 32 TPI & a 40 TPI version.

    It is in effect a screw within a screw, although I don't think the inner thread is too crucial, & I'm sure I can sort that, but the outer screw thread is frustrating me!

    I don't have a problem making them, once I have the correct info. I checked the 1971 EMERS for the L1A1 scope, & whilst brief reference is made to the component, the thread is not mentioned. It's pretty nerdy stuff, so I doubt very much it'll be in most texts, although I shall continue looking. Anybody out there know off the top of their head??


    I would be eternally grateful for any assistance!
    Information
    Warning: This is a relatively older thread
    This discussion is older than 360 days. Some information contained in it may no longer be current.
    Last edited by Roger Payne; 05-10-2020 at 03:18 PM. Reason: typo

  2. Thank You to Roger Payne For This Useful Post:

    MJ1

  3. # ADS
    Friends and Sponsors
    Join Date
    October 2006
    Location
    Milsurps.Com
    Posts
    All Threads
    A Collector's View - The SMLE Short Magazine Lee Enfield 1903-1989. It is 300 8.5x11 inch pages with 1,000+ photo’s, most in color, and each book is serial-numbered.  Covering the SMLE from 1903 to the end of production in India in 1989 it looks at how each model differs and manufacturer differences from a collecting point of view along with the major accessories that could be attached to the rifle. For the record this is not a moneymaker, I hope just to break even, eventually, at $80/book plus shipping.  In the USA shipping is $5.00 for media mail.  I will accept PayPal, Zelle, MO and good old checks (and cash if you want to stop by for a tour!).  CLICK BANNER to send me a PM for International pricing and shipping. Manufacturer of various vintage rifle scopes for the 1903 such as our M73G4 (reproduction of the Weaver 330C) and Malcolm 8X Gen II (Unertl reproduction). Several of our scopes are used in the CMP Vintage Sniper competition on top of 1903 rifles. Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Specializing in premium ammunition and reloading components. Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  4. #2
    Contributing Member Flying10uk's Avatar
    Join Date
    Feb 2015
    Last On
    Yesterday @ 10:53 PM
    Location
    UK
    Posts
    5,075
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    Are you sure that it is not a brass thread size, being as the thread is going into brass? T.P.I. is easy with brass thread because it's all 26 T.P.I.. 1/4" B.S.F. and 1/4" Brass Thread are identical threads, although labeled differently, i.e. a 1/4" B.S.F. tap is identical to a 1/4" Brass Thread tap but labeled differently.

    If I have something that is old and Britishicon, that is brass with threads in it, I normally consider the possibility of the threads being a Brass Thread and if this is the case I know that the T.P.I. will be 26 T.P.I..

  5. Thank You to Flying10uk For This Useful Post:


  6. Avoid Ads - Become a Contributing Member - Click HERE
  7. #3
    Legacy Member DanL96a1's Avatar
    Join Date
    Mar 2009
    Last On
    02-19-2024 @ 04:35 AM
    Age
    41
    Posts
    188
    Local Date
    03-29-2024
    Local Time
    01:10 AM
    Roger from memory they were OBA, although 5mm would “fit” it was not a correct “fit”.... will look up in EMERS too, but I’m pretty sure when we made them it was OBA.

  8. Thank You to DanL96a1 For This Useful Post:


  9. #4
    Legacy Member Alan de Enfield's Avatar
    Join Date
    Nov 2007
    Last On
    Today @ 12:25 PM
    Location
    Y Felinheli, Gogledd Cymru
    Posts
    2,526
    Real Name
    Alan De Enfield
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    Quote Originally Posted by Roger Payneicon View Post
    I would be eternally grateful for any assistance!
    I can find nothing specific, but, PL has stated (over the years) that many screws on the MK3 are BA threads.
    Mine are not the best, but they are not too bad. I can think of lots of Enfields I'd rather have but instead of constantly striving for more, sometimes it's good to be satisfied with what one has...

  10. Thank You to Alan de Enfield For This Useful Post:


  11. #5
    Contributing Member Flying10uk's Avatar
    Join Date
    Feb 2015
    Last On
    Yesterday @ 10:53 PM
    Location
    UK
    Posts
    5,075
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    0 B.A. is almost the same as 6 mm x 1mm pitch thread.

  12. Thank You to Flying10uk For This Useful Post:


  13. #6
    Advisory Panel
    Roger Payne's Avatar
    Join Date
    Mar 2008
    Last On
    03-20-2024 @ 06:05 AM
    Location
    Sutton Coldfield, UK.
    Posts
    3,429
    Real Name
    Roger Payne
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    Thread Starter
    I never thought of 0BA! I want coal cracking over my head! I'm pretty sure I have both taps & die so I'll cautiously try it. I didn't know that 1/4" brass thread was the same as 1/4" BSF Flying 10, many thanks. The thread sizes used on No32's are nearly all BA, mostly 8, & odd ones 10, & even one 12 BA, with the exception of the ME thread used on the MK1 & 2 for the screw that fits into the bottom of the clicker plunger housing. Over the years I've built up a stock of all of these, fortunately.

    Many thanks everyone. Much appreciated.

  14. #7
    Advisory Panel
    Roger Payne's Avatar
    Join Date
    Mar 2008
    Last On
    03-20-2024 @ 06:05 AM
    Location
    Sutton Coldfield, UK.
    Posts
    3,429
    Real Name
    Roger Payne
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    Thread Starter
    Bugger! That would have been too easy..........tried a 0 BA plug tap in a couple of Mk3 scope tubes & it is too small by a margin.......just drops in the hole & doesn't even touch the sides (where have I heard that before?). If Daniel's is definitely 0 BA that raises a question; were there different sizes used, were some modified?? Any road up my holes are bigger than 0 BA!?! I bit the bullet & ordered two carbon steel 9/32" ME dies (one 32 TPI & one 40 TPI - my money's on the 40 TPI) from Tracey tools. They're only three quid each & carbon steel will be perfectly good enough for brass.........if they fit! We'll see.

    Thanks for the suggestions offered so far anyway.

  15. #8
    Legacy Member Bindi2's Avatar
    Join Date
    May 2008
    Last On
    Today @ 06:57 PM
    Location
    Western Australia
    Posts
    1,446
    Local Date
    03-29-2024
    Local Time
    08:10 AM
    Would the bigger holes be from a rebuild.

  16. #9
    Advisory Panel
    Roger Payne's Avatar
    Join Date
    Mar 2008
    Last On
    03-20-2024 @ 06:05 AM
    Location
    Sutton Coldfield, UK.
    Posts
    3,429
    Real Name
    Roger Payne
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    Thread Starter
    Yes, that's a point.....I suppose it could be.......thread stripped so open it out to the next size up. Out of interest I'll try checking the threads on another couple of scopes when I get a minute.

  17. #10
    Legacy Member BillPredeaux's Avatar
    Join Date
    Oct 2016
    Last On
    12-28-2023 @ 11:10 AM
    Location
    UK
    Posts
    13
    Local Date
    03-29-2024
    Local Time
    12:10 AM
    In my box of bits I have a tap marked 1/8 GAS, this looks to have 32tpi and I think it is the same as 1/8 ins bsp. This is bigger than 1/4 in and approx 5/16 in.
    Could this be the thread? Undeniably Britishicon and usually used on brass gas fittings.

+ Reply to Thread
Page 1 of 3 1 2 3 LastLast

Similar Threads

  1. No32 scope bracket question please help!
    By Dens-Mil in forum The Lee Enfield Knowledge Library Collectors Forum
    Replies: 29
    Last Post: 03-07-2012, 04:04 PM
  2. Following the No.9 thread I have a question
    By newcastle in forum The Lee Enfield Knowledge Library Collectors Forum
    Replies: 5
    Last Post: 10-29-2011, 06:32 PM
  3. Newbie No32 Mk3 question
    By Alpine270 in forum The Lee Enfield Knowledge Library Collectors Forum
    Replies: 10
    Last Post: 09-08-2010, 04:58 PM
  4. M48 thread question
    By usgicollector in forum Mauser Rifles
    Replies: 8
    Last Post: 05-14-2010, 01:54 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Raven Rocks