Stripped screw hole

[Beyond the grave]

I've got an 02 cocker but the rear frame screw is stripped. Would it be better to retap it a bigger size or use a helicoil?

[Trbo323]

Helicoil. Otherwise you also have to drill out the trigger frame

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[Beyond the grave]

I figured but was hoping just going one size up wouldn't require it

[Trbo323]

I figured but was hoping just going one size up wouldn't require it

The problem is such a small increase may not give you any kind of decent thread depth so it may work for a bit but chances are it will strip out again and leave you in the same boat just with a larger hole already

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[DocsMachine]

"One size up" is 12-28, which is, today, a somewhat hard to find thread, that you usually have to special-order, and then grind the screw to length. The next common size up is 1/4"-20, and yes, requires the grip frame to be drilled out.

AND... because of how coarse the 1/4"-20 threads are, you only get about one turn of engagement- they wind up being even easier to strip out than the original threads.

Heli-Coil is the correct fix, but they're tricky to install, as the insert is generally longer than the rear grip frame hole is deep.

Doc.

[Trbo323]

I've seen metric screws used as well, but then you need one set of wrenches for the front screw, and another for the rear

Then you get it mixed up, use the wrong set on the screw and strip out the head of the screw

Now your are really up a creek and that's assuming the threads hold together through all that

Just helicoil it

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[Jordan]

CCI sells really nice 10-32 threaded inserts that work great. They do require trimming for a Cocker application, and a special tap to install, but I prefer them over helicoils.

[Beyond the grave]

Are these what you're talking about? https://phantomonline.com/product/insert-10-32/

[Jordan]

Those are the ones.

[Arthur]

I had a dude on the old site helicoil/phantom-thread a used T2 I picked up. I don’t remember his username though.