Seldom Seen #16162 Posted January 17, 2012 Share Posted January 17, 2012 Anyone who has tried to disassemble a Uberti firearm has encountered screws that were overtightened and soft usually resulting in ruining the screw. Is there a at home method to hardened them? Will heating them with a touch and quenching them harden or just make them brittle? Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted January 17, 2012 Share Posted January 17, 2012 Depends on the alloy. You'll have to contact the gun maker for that info. IF they are will'n to give it out. LG Link to comment Share on other sites More sharing options...
Garrison Joe, SASS #60708 Posted January 17, 2012 Share Posted January 17, 2012 Anyone who has tried to disassemble a Uberti firearm has encountered screws that were overtightened and soft usually resulting in ruining the screw. Is there a at home method to harden them? Will heating them with a torch and quenching them harden or just make them brittle? Casenit (Brownells) will put surface hardening on them. Have done that for original screws that I have reshaped, but it is only limited value on most screws, as the whole head of a screw needs the hardness, not just a surface layer. Just a quench on a high-carbon steel (like 1040) will make it brittle. Then it has to be drawn at a lower temperature to make it both hard and non-brittle. And, you would need to have a good guess at the alloy in the screws to set the right temps. Overall, just easier to contact VTI and get some good screws. Setting up a heat treating operation may be way more expensive. Good luck, GJ With some skill, even the factory Uberti screws can be taken out a few times without damaging them. Some of the tricks are a properly fit bit, a strong, steady hand, and sometimes an impact driver. Link to comment Share on other sites More sharing options...
Gunner Gatlin, SASS 10274L Posted January 17, 2012 Share Posted January 17, 2012 Call some local shops...alloy will decide. Buy some and send em out. We have a furnace here. Send em to me...will try it. One prob could be that it may change tolerance some, but will try if ya want. GH Link to comment Share on other sites More sharing options...
Hacker, SASS #55963 Posted January 17, 2012 Share Posted January 17, 2012 Some of the screws that vti lists as hard while some don't carry that moniker. Go with them. Much easier than attempting to learn how to harden and temper screws yourself. Link to comment Share on other sites More sharing options...
Jacknife Posted January 17, 2012 Share Posted January 17, 2012 Soak em overnight in Viagra, might help. Link to comment Share on other sites More sharing options...
Angry Ned Posted January 17, 2012 Share Posted January 17, 2012 Check with Pioneer Gun works. I believe that they produce a case hardened screw for Italian and Marlin rifles. Link to comment Share on other sites More sharing options...
Jabez Cowboy,SASS # 50129 Posted January 18, 2012 Share Posted January 18, 2012 Cheaper to buy the Hardened screws from VTI !!!! Or make them from "Screw Blanks" of known alloy .... Jabez Cowboy Link to comment Share on other sites More sharing options...
Jack Houston # 35508 Posted January 18, 2012 Share Posted January 18, 2012 Soak em overnight in Viagra, might help. :lol: :lol: Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted January 18, 2012 Share Posted January 18, 2012 Naw, just soak'm in Wisky..... Then the screws will think there tougher than they really are LG Link to comment Share on other sites More sharing options...
Seldom Seen #16162 Posted January 18, 2012 Author Share Posted January 18, 2012 I figured it wasn't possible to harden screws at home. So far the disassembly of a new 73 I have is going well with use of lot of PB Blast with no damaged screws. Link to comment Share on other sites More sharing options...
Yellowhouse Sam # 25171 Posted January 18, 2012 Share Posted January 18, 2012 Cheaper to buy the Hardened screws from VTI !!!! Or make them from "Screw Blanks" of known alloy .... Jabez Cowboy Yep + 1 or 2! Link to comment Share on other sites More sharing options...
Chili Ron Posted January 18, 2012 Share Posted January 18, 2012 Howdy, sometime back there was a pard from new zeland or australia who was working to get case colored screws. He (or she? Mighta been a she?) was heating screws over a gas stove to a certain color for so many seconds then quenching em in oil of some kind. At the time I saved or printed the info but I have no idea where it went. A move and a computer crash and gone, makes finding that info a joke. Perhaps that pard will post. Im pretty sure they were on the other side of the world so have some patience, Best CR Link to comment Share on other sites More sharing options...
Driftwood Johnson, SASS #38283 Posted January 18, 2012 Share Posted January 18, 2012 Check with Pioneer Gun works. I believe that they produce a case hardened screw for Italian and Marlin rifles. As Garrison Joe already stated, Case Hardening does not strengthen a screw very much. Case Hardening is a surface treatment and only hardens the surface of the steel. The main body of the steel remains just as soft as when it started. If you want screws that do not deform so easily as stock Uberti screws, save yourself the trouble and order the hardened screws from VTI. For what it's worth, a hardened screw should be less prone to seizing than a soft screw. But do use a hollow ground screw driver bit that fits properly and do use gentle but firm pressure when loosening them. Link to comment Share on other sites More sharing options...
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