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PostPosted: Wed Jun 22, 2011 1:16 am 
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Location: N.C. USA
Hay folks, I'm in need of an odd ball screw to attach a scope/dot-sight mount to an old Savage .22 rifle.

It's got a 1/4" x 32 tpi hole in the top of the barrel where the rear sight mounts. The screw that held the sight on is too short to bolt on the rail I made.

Unfortunately, no one in town can even order one for me! Can't even find one on the net!!! ::shrug::
It needs to be 1/4-32 x 3/8'' long minimum.

This is the closest thing I have found, but would prefer to find one I won't have to alter..... it needs a head on it.
http://www.weldfabulous.com/Smith-Wdw77 ... 14588.html

Any help will be much appreciated!

..... Joe

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PostPosted: Wed Jun 22, 2011 1:49 am 
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Location: Silsbee, Texas
Could you countersink the hole in the rail. This might get you closer to where you're trying to go.


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PostPosted: Wed Jun 22, 2011 2:04 am 
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The screw has a 90 deg. shoulder, unfortunately,.... can't countersink. Can't bore because it's only .070 thick ::shrug::

Thanks conslade, for the suggestion ::handshake::

..... Joe

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PostPosted: Wed Jun 22, 2011 2:34 am 
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Joe Dirt wrote:
It's got a 1/4" x 32 tpi hole in the top of the barrel where the rear sight mounts. The screw that held the sight on is too short to bolt on the rail I made.

In a similar situation, I searched for months and bought a couple of screws that should have fit but didn't (thread angles were different). I finally coated the original screw with Stud and Bearing grade Locktite, seated the screw snuggly, and dressed it down flush with the top of the barrel. Then I drilled and tapped it to a modern standard scope screw (probably 8x40). Took about 15 minutes.

Jim

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PostPosted: Wed Jun 22, 2011 5:32 pm 
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Problem solved! ::ds::

I had the rail .100 above the barrel. I simply lowered it to .050 and was able to catch some threads with the original screw! ::nod::

Thanks for the idea, Jim! Re-taping probably would have been my next step (I really wanted to keep it all original if possible though) ::tu::

Thanks for the help, guys!!!
Now the fun part..... sightin the old plinker in ::woot::

Couple of pics below

...... Joe


Attachments:
tac rail on Savage .22.JPG
tac rail on Savage .22.JPG [ 688.45 KiB | Viewed 577 times ]
tac rail.JPG
tac rail.JPG [ 751.03 KiB | Viewed 577 times ]
Savage with BSA dot sight.JPG
Savage with BSA dot sight.JPG [ 574.3 KiB | Viewed 577 times ]
Savage with dot sight.JPG
Savage with dot sight.JPG [ 526.74 KiB | Viewed 577 times ]

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I've got a camouflage knife, but I can't find it.......

..... cardboard addicted.....

"The old timer's concentrated on making knives; not keeping records!!" ~ Bonfire bob
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PostPosted: Thu Jun 23, 2011 2:39 am 
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Location: O-hi-o
Look in your phone book for your local machine shop. I work at one, and with any computer controlled machine I know we can make any size, shape, type, etc of screw with any kind of threads. It may cost you twenty bucks for one screw, but if you can't get it anywhere else, this may be the best route. The twenty dollars is not all that unfounded though, as someone will have to find the parameters for the screw you need, get the material to make it, and spend about 20-30 minutes programming and running a machine to make you a custom screw, however you need it.

If you give your local machine shop a call, and possibly supply them with a screw to go off of, I'm sure they would do it for you. Personally, I work at a machine shop that makes ATV racing parts, but we often do orders for local companies with special jobs, or even one off jobs for one particular person. Since you seem to know exactly what you need, the machinist's handbook should have the parameters for it, and a local shop should be able to easily do the job for you

*sorry i posted this late, didn't see that you got it to work. but if you ever need anything else like this, follow the above. most machinists are great guys and more than happy to help, since machinists (engineers) love solving problems.*

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PostPosted: Fri Jul 08, 2011 6:28 pm 
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I know this is really late but most any metal working item can be had from MSC Industrial supply. They are a miracle.

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