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Old 08-29-2020, 04:50 PM
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Milton Milton is offline
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Default 1905 M&P Thread Damage Fix

I have the noted revolver( 1922 manufactured ? ) that needs the threads cleaned up in the frame of the revolver where the rear most side plate screw fits.
What size tap do I need for this?
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Old 08-30-2020, 02:13 AM
Hondo44 Hondo44 is offline
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I have the noted revolver( 1922 manufactured ? ) that needs the threads cleaned up in the frame of the revolver where the rear most side plate screw fits.
What size tap do I need for this?
For pre WWII I, K, and N frame Smiths, it's a proprietary size: slightly smaller diameter (.118") than a National fine #5 (.122") x 44. So don't run a #5 x 44 too much past the point of the tap or it'll be too big for the original screw.

If you have to go deeper to clean up the threads, get a post war S&W #5 x 44 side plate screw so it's not too loose in the hole.


3 x 48 if it's a .22 M frame
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Old 08-30-2020, 04:45 AM
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Thank you very much !!!!!
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Old 08-30-2020, 05:51 PM
Hondo44 Hondo44 is offline
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You're very welcome!

You won't normally find a 5 x 44 tap at the local hardware store. And you want a "gun tap" with only two flutes. Brownells is a good place to order the tap.

Let us know how it works out for you.
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Old 08-30-2020, 06:45 PM
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Thank you much! I was going to call Brownell's next week.As soon as I get things sorted out I will report back about how things went.
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