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How to fix stripped Starbox

Created by philn philn  > 9 months ago, 4 Feb 2024
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philn
philn

1080 posts

4 Feb 2024 4:04am
What's the best way for someone with no skills (me) to fix a stripped Starboard starbox?
powersloshin
powersloshin

NSW

1844 posts

4 Feb 2024 7:08am
I would add a few turns of plumbers tape to the screw and it should be tight enough
jn1
jn1

jn1

SA

2683 posts

4 Feb 2024 11:03am
You could drill/dremel it out, and epoxy in another knurl nut ?. Contact the manufacturer to buy the nut. Shouldn't be too hard.
pepe47
pepe47

WA

1382 posts

4 Feb 2024 1:03pm
I was thinking a helicoil would be an option. Fairly easy to fit.
REDhat
REDhat

37 posts

4 Feb 2024 2:57pm
7/16 unf tap is 11.13 mm major diam and 9.73 root diam.
Mark _australia
Mark _australia

WA

23526 posts

4 Feb 2024 6:29pm
^^^ then youre into the plastic so dunno why you would go that big.

It still has some thread so i would go tape like 'sloshin said.
If not, then tap to M6 as at least it it a windsurf standard.

Care - the insert is not bonded in well so dont go nuts on it
REDhat
REDhat

37 posts

6 Feb 2024 6:24am
Select to expand quote
REDhat said..
7/16 unf tap is 11.13 mm major diam and 9.73 root diam. Assuming that is a 10m1.5 pitch o-ring plug that is stripped.
The od of a 10m1.5 helicoil is about 11.7mm.
Thread tape will not have any shear strength needed to clamp an o-ring.
The torque required to tap a new thread may exceed the bond strength.
A new (sharp) tap and a careful hand would help.
Any consideration to any windsurfing standard thread type is not relevant.
Their is a risk the od of the brass insert may not be enough to tap to 7/16.
FormulaNova
FormulaNova

WA

15090 posts

6 Feb 2024 8:42am
Select to expand quote
REDhat said..

REDhat said..
7/16 unf tap is 11.13 mm major diam and 9.73 root diam. Assuming that is a 10m1.5 pitch o-ring plug that is stripped.
The od of a 10m1.5 helicoil is about 11.7mm.
Thread tape will not have any shear strength needed to clamp an o-ring.
The torque required to tap a new thread may exceed the bond strength.
A new (sharp) tap and a careful hand would help.
Any consideration to any windsurfing standard thread type is not relevant.
Their is a risk the od of the brass insert may not be enough to tap to 7/16.



It seems to be a finbox screw thread that is the problem, from the picture, not an o-ring plug.
Mark _australia
Mark _australia

WA

23526 posts

6 Feb 2024 11:31am
Think the clue is in the word Starbox


peterowensbabs
peterowensbabs

NSW

497 posts

6 Feb 2024 11:18pm
Select to expand quote
pepe47 said..
I was thinking a helicoil would be an option. Fairly easy to fit.



Stainless(316) Helicoil and brass/bronze=corrosion over time, less noble mettle =galvanic action.
peterowensbabs
peterowensbabs

NSW

497 posts

6 Feb 2024 11:20pm
Marine Siccaflex and thread tape
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