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Joined: Jul 2012
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Sidelock
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Sidelock
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Joined: Jul 2012
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damascus,
You can't be wrong, if it is your gun, it is your choice. Whoever gets it after you might complain, but as long as it is yours it is your choice. The wide slot illustrates my suggestion to put a "shim" in the damaged screw's slot and pein the damaged metal back against it. If the damage is just filed out, the result is a wide slot. BTY, the screw you see as a wart, looks fine to me.
Mike

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Sidelock
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A few times I have filed the damaged slot wide and tightly dovetailed and soldered a piece of drill rod in the slot. Then recut the slot and touched up the engraving. If tightly fitted on top it's invisible but you must leave a little room at the bottom for the solder.

1 member likes this: Stanton Hillis
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Sidelock
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I welded up a few badly buggered screws when all I had for a lathe was my little Unimat, and couldn't make a screw. The hardest part for me was not burning away the edge with the MIG arc. I found it best to insert the screw into a small steel flat washer that had a hole a wee bit smaller than the head diameter, and then weld all around and into the center over the damaged slot. Then the washer and excess weld was turned off in my Unimat after rough grinding, and the slot cut with a jewelers saw, and finished with a slim needle file. While welding, I clamped the threads in copper to protect them, and coated them with some anti-scale compound. Jobs like that became easier when I learned to TIG weld.

I've read about Kutter's method of removing the damaged screw top, and silver soldering a piece on to create a new head and slot. It sounds as if it would be quicker and easier than welding.

For most of the domestic guns I bought that had badly damaged screws, it saved a lot of time and money to just buy a replacement screw from a firearms parts dealer like Numrich, or the parts guys at gun shows. I've laid in a pretty good supply of various size oval head wood screws for guns for things like forends, trigger guards, and buttplates, which were bought very reasonably at gun shows. For common field grade guns, having the screw slot a bit out of time was much better than looking at the buggered screw, and often, it wasn't even necessary to blue it. Peening the damage back into place works well for screws with minor damage, but bluing afterward will always be necessary. The labor cost of having a gunsmith repair or make a new screw just might not make good economic sense for a lot of lower grade guns.


A true sign of mental illness is any gun owner who would vote for an Anti-Gunner like Joe Biden.

Joined: Mar 2012
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Sidelock
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I have saved original screws by thinning a small piece of sheet steel to fit snug in the slot then driving a small chisel straight down into the head close to the damaged area which moved steel up against the sheet steel. Then I inlayed mild steel wire into the cavity created by the chisel and dressed it down to original shape. Not for smaller screw heads for sure. But I have found it to work nicely on larger screws.

Last edited by SamW; 03/24/23 08:19 AM.

Sam Welch
1 member likes this: earlyriser
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Sidelock
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Sidelock

Joined: Mar 2021
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I've done a few with our laser welder. Luckily the welded material doesnt get very hard making it relatively easy to re-cut the drive slot

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