fixing buggered gun screws
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fixing buggered gun screws


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Old 01-03-2014, 03:31 PM   #1
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Default fixing buggered gun screws

I have found lots of guns with buggered up screws because someone used the wrong type of screw driver on them. you should always use a HOLLOW ground screw driver.

fixing buggered gun screws - Gunsmithing Forum

The results of using the wrong screwdriver look like this:


fixing buggered gun screws - Gunsmithing Forum

Fortunately, the repair is easy and anyone can do at home with minimal tools

The first step is to "peen" the metal back into shape, you will need a brand new ball peen hammer (or an old one with a freshly ground and polished face). the face of the hammer must be smooth or your results will vary as the dents in the hammer face will affect the surface of the screw head.

Once you have the hammer, find a piece of steel (1/4 or thicker) and drill a hole just slightly larger than the threads of the screw

fixing buggered gun screws - Gunsmithing Forum

Wrap the threads of the screw with masking tape and seat it in the hole

fixing buggered gun screws - Gunsmithing Forum

next gently "peen" the metal back down, remember to move the hammer around and don't strike it too hard. the object is to push the metal back down close to its original location.

Next take a parallel needle file that is the correct width for the slot and file the slot so that you remove the extra metal.
(sorry I forgot to take a picture of that part)

The next step is polishing: get your self a piece of pine wood (any soft wood will suffice), some sand paper (220 & 600 grits), some WD-40 (or other lightweight cutting oil) and a drill. Wrap the screw threads with tape again and chuck it into the drill motor.

fixing buggered gun screws - Gunsmithing Forum

Then lay the sand paper onto the pine board and coat with cutting oil, press firmly on to the paper and spin the screw. You can push hard here as the wood will yield to the pressure and create a depression for the screw head. You will need to move it around as the sand paper will get torn up. Start with the 220 grit and finish with the 600 grit (go even higher for a nicer finish)

fixing buggered gun screws - Gunsmithing Forum
The next step is re-finishing the screws. I used cold blue which is fine for small parts as it is next to impossible to hot salts blue tiny parts.....



fixing buggered gun screws - Gunsmithing Forum
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Old 01-03-2014, 06:44 PM   #2
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Very handy.
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Old 01-03-2014, 07:01 PM   #3
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Thanks for the "How to"
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Old 01-03-2014, 07:20 PM   #4
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Hopefully this is one trick I will never have to use. I don't buy guns with buggered up screws. I have proper tools here.
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Old 01-04-2014, 05:58 AM   #5
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excellent tip! much better than my method with a file.
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Old 01-04-2014, 07:25 AM   #6
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Excellent tip and photos. I really like using the soft pine and sandpaper idea.
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Old 01-26-2014, 08:51 PM   #7
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When I have done that I have used a small punch so I can steer the metal back in place more precisely. you can do this with dents and gouges in receivers too.

Jim
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Old 01-26-2014, 08:57 PM   #8
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On such a simple, cheap item, why not just buy a new one?
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Old 01-26-2014, 09:20 PM   #9
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Quote:
Originally Posted by clr8ter View Post
On such a simple, cheap item, why not just buy a new one?
Because they are a PITA to find correct screws. That's why gunsmiths keep drawers full of old parts...

Brownells makes a set of edge cut files to make the screw slots, easier than a needle file. Cuts cleaner also. Consider case hardening the screw heads to prevent future gauling. Product called Casinite does it simple and quick. Heat with a torch and dunk in the goop. Instant surface hardened part. Good stuff....
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Old 01-27-2014, 01:43 PM   #10
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Quote:
Originally Posted by clr8ter View Post
On such a simple, cheap item, why not just buy a new one?
Depending on income, some would say the same thing about the whole gun.

My position is, since the screw is so easy to fix, why be lazy and buy a new one?
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