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Repairing Damaged Screws for old guns or new ones
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- Опубліковано 21 лип 2012
- In this video I show you how to repair those damaged screws that are so common on old guns and even some newer ones. Anyone can perform this repair and there are a lot of guns out there that need it.
Great job. Well done and thanks. I would not have thought of the hammer.
Nice video .After you hammer the screw head .You might want to place the screw in drill chuck ,spin it against sand paper. Then blue it with heat and oxpho they will come out looking a lot better
& de-grease it before blueing. 😊
Thank you for making this video and sharing your knowledge with the world. Mr Rodgers would be proud to see what you have done. 5 years later and 13.3K views proves you gave us a great educational video. The saving and salvaging of historical, vintage original hardware is gift we give the generations who will use the old smoke poles when we are long gone.
Thank you Sir, glad you liked the video.
Thank you for this excellent video. It was fun to watch and helpful. Good work. I'll watch more of your videos.
Nice! This will come in handy on some of the old british cars I work on every now and then.
WOW! This is one of the most helpful videos I have found on youtube!
Always weld mine,Then redo the crown and slot. Did have one like yours,twisted one side,just snapped off anyway,so neaster to weld in the first place.Just blob with Mig wire,,then if it's round on the head lathe or drill will get the job done..Interesting all the same,Thank You.
you do some nice work thanks for showing us
It does kick hard. The bores on these old trapdoors are also larger than .458 which is your standard 45/70 so accuracy with some rounds may be horrible unless you paper patch or use pure lead bullets so they "bump up".
thanks for the tip. i have a beautiful 1950 Marlin 39a from my father-in-law and has 2 or 3 bugger up screws otherwise in excellent shape and the screws really bother me. thanks again.
Glad the info could help.
Great job. Good video.
I checked them out, never knew they existed. If I was making a new screw I'd definitely use them, but for this, just tapping in the screw driver bit works great. There is really no need to have to buy one, especially at $40 a file. There are screws tho with different slot widths where you might need one.
Good advice, when I heat the part before applying the oxpho blue it does go straight black without the greenish or "shiney" blue affects I usually get. I know what you mean though I've used oxpho blue to refinish a Norinco 1911 so I'm pretty familiar with it. I love the stuff, I always get a great finsih with it.
good vid, i might need this as i plan to buy from ima
These were my thoughts when making that comment: 'The oxidization, bluing, and other impurities are getting mixed in with the head of the screw when he pounds on it. If he gave it some light abrasion, or even just cleaned it before working the metal; it would improve the final product significantly.'
You see, I'm not suggesting you remove significant volumes of metal from it. I make small machines as a hobby, and this is something I have successfully done on mild steels and aluminum in the past.
also do a few passes with a safe side file in the slot....nice job though
Thanks, don't forget to tell your friends and send them a link to the videos.
On screws this small, even my jewelers files are too large. Tapping the square cut bit into the screw slot works great though.
Yes, a big reason! What you are doing is smearing the metal back into the slot, if you file it off before hand, they there is nothing you can do with it.
.157" = 3.988mm Wonder if it is a 4MM screw... :-) I find a slightly rounded taper punch will also help get into the smaller areas, like on the corners of the more damaged screw.
This looks good. Is there a reason not to file/clean off the head before working it?
18muffinMan kitty woodworking machinery
What if your screw mount holes are way biger then average.
You mean the dia. of the screw on the threaded portion? I'd just drill a hole to what ever size I needed.
Dude, your method works, but the CLASSIC means is tap the metal back in and recut for the correct size, then turn the head smooth to get the proper head finish back again.
also with oxpho, blue, BURNISH with steel wool and RE BLUE, do it three times and it'll stop being greenish and get a deeper blue black color.
Seeya bro, happy smithing
Dude
nice , thought you were going to weld and then saw in a new grove , i guess this would be the rivet method haha
Yea, if they were destroyed, that would be the right fix, but this is really the simplest and oldest fix there probably is.
You know that replacement screws, whether repaired or new, is a time involved process. Brownell's sells carbon steel round stock, which can be machined, in order to match the blue combination (color ) , dip in oil coating, and heat treat the screw, this will match the color combination. Or go to My Masters Carr catalog and order new, and heat treat the same way. Once you beat on the older screws, like in your. video, the strength and density of the metal is compermised, Leaving a distorted appearance. We have done both, replacement is a far better solution, buy heat treating, the new replacement s crews, you now have a confident repair.
An auto body work hammer may be better than a ball peen hammer for shaping metal.
genius , you are lucky you have all fingers yet .
Chaim Levi As a machinist/welder I could barely watch this.
Nolan Mythbustor i agree, especially using a screwdriver as a chisel I could hardly watch that he ruined a good screwdriver
Dude, yeah oxpho's all I use.
Seeya
Dude
That screw was really screwed-up. Bada, bing.
I loved the video! I too have repaired many screws from antique firearms in this way - but a word of caution - cold peening of old mild-steel and/or wrought-iron screw heads will leave them MUCH weaker than original 'as manufactured' screws! They will function better than 'as found' but won't take a high-torque re-fitting into their original position. You must treat them gently!
Thanks for the tip.
I would never, ever buy a gun from anyone that has screws that look even close to these. I don't care how good of condition the actual gun is. It's an indication the gun was in the hands of an idiot, and I wouldn't want anything to do with it.
Also, 3:12 you should NEVER position your finger near the hole you are drilling like in this video. With pressure being put on the drill, the bit could snap and end up going right through your finger. I know because it happened to me with a 5/32" drill bit about forty years ago.