I broke a side plate screw

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I tried to remove this side plate screw from early non model marked S&W model 12. 1/2 of slotted tip broke off. Luckly other side left and I was able to grab with small vice grip.
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I don't think the screw had been removed since gun was assembled in 1953. The other 3 were also hard to remove but this one was the worst.
Using a good Grace hollow ground screw driver. I think that there might have been a flaw in the screw.
When it snapped quite a Suprise !
 
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Lucky, lucky, lucky, lucky.
I probably woulda done something a little different.
I woulda freaked out. And then panicked.
There is a great sense of relief associated with solving that kind of problem.
Well done.
 
I can't conceive of how you could have removed the remnant of that screw with vise-grips.

Well-played.
 
I can't conceive of how you could have removed the remnant of that screw with vise-grips.

Well-played.

I learned to take broken screws out from my Metalsmiths when I worked on aircraft. Vise Grips were the first thing to try, some times you could tap the screw out using a flat bladed (Common) screwdriver and last of all was an E-Z Out.
 
Congrats on getting it out!

After my own experiences and helping out many friends who broke screws and bolts and helping them, I bought a set of Drill Hog left handed drill bits. You spin them in reverse and while drilling out the broken screw or bolt they usually unscrew it as well. Not successful 100% of the time, but does work more times than not if there isn't a lot of rust. If it doesn't unscrew, you would have to drill it out anyway - a win-win.
 
A clean break like that suggests hydrogen embrittlement. A close look at 20x magnification would tell. That’s a screw manufacturing process error.

Yes Hydrogen Embrittlement. I was thinking the same thing. Doesn’t everyone know that ?
 
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