Reporting back on this issue; I was able to fix the threads with helicoils. It
turned out to be a really easy job. I locally bought a kit with ¼-20 helicoils
and the tap and threading tool, drilled the holes out, tapped and threaded in
the helicoils. I found that they did not feel that tight
Helicoils are great things!
We used to wet install helicoils with a poly imide epoxy primer for both
galvanic isolation and as a thread locker building precision guided
munitions. If you can find poly imide epoxy in anything less than
gallon sizes it is very useful anytime you need to
Yes, you drill the hole bigger and tap for the threads on the outside of
the helicoil or thread insert. The other main advantage of using one of
these over just tapping for a larger bolt is in softer base materials
(aluminum, plastic) it will distribute the screw load and prevent it from
David wrote:
> I have seen mention of helicoils several times on this list but I have no
> experience with them.
>
>
I believe Helicoil may have been the original for this type of repair, but
many people in my motorcycle circle prefer another brand called Time-Sert.
I've only used the Time-Sert
From: David Knecht via CnC-List
Date: 5/14/20 18:50 (GMT-08:00) To: CnC CnC
discussion list Cc: David Knecht
Subject: Stus-List Helicoils I have seen mention of
helicoils several times on this list but I have no experience with them. I
have several stripped screws on my Harken
Helicoils are just one option to deal with stripped threads. IMO if you
can go with a larger bolt then it is a better option. Some applications
such as spark plugs have limited "meat" and fixed diameter threads so
staying with original size is really probably the only option. In other
Hi David
Yes, allows the use of the original screw, so whatever is fastening to
it doesn't have to be modified.
Procedure is to drill and tap oversized, and install a helicoil -
essentially a coil of square wire, wound up like a spring. The wire
engages in the new threads and is sized so
That’s about it. You would have to drill the other piece to fit a larger
bolt and there might not be enough metal.
On Thu, May 14, 2020 at 9:52 PM David Knecht via CnC-List <
cnc-list@cnc-list.com> wrote:
> I have seen mention of helicoils several times on this list but I have no
> experience
I have seen mention of helicoils several times on this list but I have no
experience with them. I have several stripped screws on my Harken furler and
was thinking they might be useful to repair. What is unclear to me from what I
have read is the reason to use them. I still have threads
