Repair to fsc grub screw holes

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Gyro2624
Gyro2624
NSW
1 posts
NSW, 1 posts
9 Aug 2026 9:48am
Any hints on repairing striped grub screw holes on fsc system
CH3MTR4IL5
CH3MTR4IL5
WA
995 posts
WA, 995 posts
9 Aug 2026 3:03pm
Generally easier to bang in a new box.

Otherwise you can try retapping to a slightly larger grub screw.

If its just one and you’re not changing fins regularly throw some loctite on it and set it in place.
Mark _australia
Mark _australia
WA
23777 posts
WA, 23777 posts
10 Aug 2026 7:05am
Yup what he said. If it’s not too bad, M5 will go in tighter without having to retap thread.
Using JB weld and similar can work but you need moulding release wax, great care blah blah and in the end it’s almost as much work as replacement.


if it’s FCS1 it’s so easy to run a hole saw thru and pull it out then reset one


regards,

Mark
MOzCustoms
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