Just had another thought. Depending on how long the stud is, it may be simpler
to cut off the damaged end with a dremel and an abrasive wheel. A rule of thumb
Iâ??ve used for years (not sure where I got it from - maybe one of my undergrad
profs?) is that you want at least one diameter of the fastener above the nut,
once itâ??s fully assembled.
â??
Tom Coradeschi
tjcora@icloud.com
> On 17 Sep 2022, at 5:47 PM, Thomas Coradeschi <tjcora@icloud.com> wrote:
>
> I forgot about thread files. Itâ??s a 12-24 stud, so youâ??d want a 24TPI
> file, no?
>
> â??
> Tom Coradeschi
> tjcora@icloud.com
>
>
>> On 17 Sep 2022, at 3:32 PM, Pat Horne <patintexas@icloud.com> wrote:
>>
>> See if you can find a 12TPI thread file. You start filing where the threads
>> are mostly good & keep filing over the damaged threads until you reach the
>> end. If you want to, you can then run a standard 12-24 die onto it
>> afterwards. I got a set of SAE & metric decades ago from J. C. Whitney -
>> May they Rest In Peace.
>>
>> Peace,
>> Pat
>>
>> Pat Horne
>> We support Habitat for Humanity
>>
>>
>> On Sep 17, 2022, at 1:55 PM, john niolon <jniolon@att.net> wrote:
>>
>> 
>> Help machinist and mill wright type people
>>
>> I have a output stud in an alternator case that the beginning threads are
>> stripped/galled/messed up from someone trying to force a metric nut on it.
>> the stud is about
>> 5/8" long and the majority of the threads are good.
>>
>> I can't seem to get a 12-24 die started so I know it will true up the
>> existing threads. I see they make adjustable dies on the net... can I use
>> that to slide over the bad threads
>>
>> the adjust the bolt in the die to sit right on the stud then thread it back
>> over the bad threads ?? I just hate to send 20 bucks for the die if it
>> won't do what I want...
>>
>> Any experience doing this ??
>>
>> thanks
>> john
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