Could someone tell me if the Kahr 27's use the square thread on the chamber end of the barrel? What size is the thread used? Thanks.
Kj
Barrel Thread Size
Started by
kilroyjones
, Oct 05 2005 08:02 PM
6 replies to this topic
#1
kilroyjones
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Posted 05 October 2005 - 08:02 PM
#2
deerslayer
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Posted 05 October 2005 - 09:53 PM
All thompsons use the same barrel thread size (that is the same square thread as your question). I don't know exactly what it is, but PK should know.
Dan
Dan
#3
Bisley45
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Posted 06 October 2005 - 09:24 AM
Square, just like 03 Springfields and P14 & M1917 Enfields. Think that would be a good use of a Khar or W/H barrel except it be a louse use of an action.
BB
BB
#4
PATHFINDER
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Posted 06 October 2005 - 04:00 PM
| QUOTE (PhilOhio @ Oct 6 2005, 11:24 AM) |
| Aren't those called "Acme" threads? |
You are correct sir.
#5
kilroyjones
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Posted 06 October 2005 - 04:20 PM
Square threads have a sharp 90 degree edge. Acme threads have a slight 45 degree bevel. Most vises and C-clamps have an Acme thread.
Thanks to everyone who replied. KJ
Thanks to everyone who replied. KJ
#6
amafrank
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Posted 07 October 2005 - 08:49 AM
There is indeed a Square thread as well as Acme, sharp V, truncated V, buttress.....the list goes on.
The thompson is a Square thread and I believe the pitch is 10 per inch. I can't remember the diameter though 7/8" comes to mind.
Acme threads don't have a 45 deg flank but they do have some taper where the square threads have very little.
Frank
The thompson is a Square thread and I believe the pitch is 10 per inch. I can't remember the diameter though 7/8" comes to mind.
Acme threads don't have a 45 deg flank but they do have some taper where the square threads have very little.
Frank
#7
PK.
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Posted 07 October 2005 - 10:01 AM
How did I miss this thread?
Yes, Thompson thread form is what we call square, the major diameter is .848 and 10 pitch is correct.
Acme threads are 29 degrees.
Yes, Thompson thread form is what we call square, the major diameter is .848 and 10 pitch is correct.
Acme threads are 29 degrees.
