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Joined: Feb 2010
Posts: 17,798
Campfire Ranger
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Campfire Ranger
Joined: Feb 2010
Posts: 17,798 |
+1 on RAN's post, in more than 40 yrs. as a Tool & Die Maker I installed hundreds of Heli-coil inserts don't remember any problems.
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Joined: May 2005
Posts: 16,554
Campfire Ranger
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Campfire Ranger
Joined: May 2005
Posts: 16,554 |
Or that. Suspect the big objection was like mine thinking it would be visible like a big ugly booger
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Joined: May 2003
Posts: 16,971
Campfire Ranger
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Campfire Ranger
Joined: May 2003
Posts: 16,971 |
Is that trigger housing white metal ?? I doubt it’s steel..., but may be aluminum.
IF you fix it yourself then TIG & trap is the way to go.
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Joined: Apr 2011
Posts: 4,350
Campfire Tracker
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OP
Campfire Tracker
Joined: Apr 2011
Posts: 4,350 |
There is room under the safety also as to where I could slide a square nut between the safety and housing and just screw a screw into it. I would guess the metal inside the housing that stripped is mad of aluminum. The pics posted fills everyone in on just what cheap way it was made.
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Joined: Apr 2011
Posts: 4,350
Campfire Tracker
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OP
Campfire Tracker
Joined: Apr 2011
Posts: 4,350 |
I ended up finding a screw 2 sizes up from original and it easily made it's own threads. It's good and tight and I only put it to 15 inch lbs. I had plenty of options from here and thanks for so many.
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Joined: Oct 2014
Posts: 4,755
Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
Posts: 4,755 |
I ended up finding a screw 2 sizes up from original and it easily made it's own threads. It's good and tight and I only put it to 15 inch lbs. I had plenty of options from here and thanks for so many. 2 sizes up? Meaning you went from something like a #8 to a #12 or 1/4"? It's really concerning that you were able to screw it in and have it make it's own threads. Seems like cracking that aluminum threaded piece is a strong possibility, and much more likely than the screw cutting it's own threads unless you used a self tapping screw. Hopefully that's miscommunication and you just went with a longer screw of the same size.
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Joined: Oct 2014
Posts: 4,755
Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
Posts: 4,755 |
A TIG welded repair plug is annealed by definition plus the surrounding parent metal is going to be annealed as well. If a Helicoil is used, the original hardness of the parent metal is preserved plus the Helicoil itself is hardened stainless steel. This makes the repaired threaded hole stronger and more resistant to stripping than the original thread.
RAN
That is not what annealed means. Welds are not "annealed by definition", especially a small weld in a larger surrounding piece of metal. The rate of cooling matters, and quicker cooling from heat transfer to the surrounding steel does not leave the weld annealed. Annealing in carbon steel (like what is used in most rifle actions) typically requires slow cooling over a number of hours; very different than how a welded hole cools. The heat of welding can affect the temper of the surrounding steel, but that is not the same as annealing. The weld itself may be harder or softer than the base metal, depending on the filler rod used.
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Joined: Apr 2011
Posts: 4,350
Campfire Tracker
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OP
Campfire Tracker
Joined: Apr 2011
Posts: 4,350 |
I ended up finding a screw 2 sizes up from original and it easily made it's own threads. It's good and tight and I only put it to 15 inch lbs. I had plenty of options from here and thanks for so many. 2 sizes up? Meaning you went from something like a #8 to a #12 or 1/4"? It's really concerning that you were able to screw it in and have it make it's own threads. Seems like cracking that aluminum threaded piece is a strong possibility, and much more likely than the screw cutting it's own threads unless you used a self tapping screw. Hopefully that's miscommunication and you just went with a longer screw of the same size. No it was 2 sizes up,I ran the next size first which cut in real easy then the next size. It's mostly plastic.
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