Can a bigger screw be used to mount the breach...

Can a bigger screw be used to mount the breach...

Joined: February 9th, 2006, 10:35 pm

August 6th, 2012, 1:25 pm #1

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.
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Joined: January 4th, 2010, 4:13 am

August 6th, 2012, 2:08 pm #2

I would not use the commonly available 6X32 the thread is to coarse, there just isn't enough "meat" in the tube for a larger screw . Smaller taps and screws are available through industrial suppliers and hobby shops they are just not commonly available due to the small volume of sales,
If you need a larger screw due to a damaged thread I would reccomend a 5X44 or a 5X40 these are available through McMaster Carr at:
http://www.mcmaster.com

They also carry a 6X48 screw but I'm not sure if the head of this screw can be modified enough to fit the guns in question without modifying the breech itself which is something I would not want to attempt.



James S
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Joined: September 21st, 2007, 12:13 pm

August 6th, 2012, 6:10 pm #3

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.
been involved with these 22xx platform guns for a while now, so my advise would be to bite the bullet and buy a 4/48 tap from one of the machine equipment suppliers, as in all probability you'll need it more than once. You can re-drill and tap the tube for a #5 or #6-48 but that tap isn't east to find either and going to a courser tap won't get many threads in a 1/16" thick tube wall. And after that you will have to try to keep the new larger screw head size from being in the way. If you have a problem finding a 4-48 tap, drop me a note and I'll give you a supplier.
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Joined: April 27th, 2008, 10:28 pm

August 6th, 2012, 11:25 pm #4

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.
you can use, then pass it around to those that might need it.

This comes up several times a year on here. Maybe we all can use it as a "passaround loaner" tap. It's quite delicate, but it's the best one available and easily cuts the hardest Stainless Steels.

Let me know.

MIke T.
TKO - Omaha, NE USA
402-889-9222
www.tko22.com
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Joined: September 21st, 2007, 12:13 pm

August 7th, 2012, 1:35 am #5

Great Idea Mike..............n/t
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Joined: February 9th, 2006, 10:35 pm

August 7th, 2012, 11:58 am #6

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.
I'll see what I can come up with. I may take Mike up on his offer.

I plink, therefore I am.
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Joined: December 14th, 2010, 5:08 am

August 8th, 2012, 1:13 am #7

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.
why bother with the trouble of passing around a tool that everybody needs when they're only a few bucks on ebay? just buy your own...
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Joined: February 9th, 2006, 10:35 pm

August 8th, 2012, 2:06 am #8

There are a bunch of them!

I plink, therefore I am.
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