Stripped thread

doh777

Hello

Any suggestions please on how to remove this allen bolt? Putting on a back carrier on an old enough frame. Side Bolt was very tight. Applied force, heard snap, now it just spins.

Many thanks in advance

cletus

@doh777 Is there any space between the bolt head and the frame? Sometimes, I'd you can get a screwdriver or something behind it, lever it away from the frame, you can create enough pressure to allow you to unscrew.

Otherwise, you're into drilling out the bolt (but you'll still need to apply leverage to stop it spinning)

doh777

There might be a bit of space yes. I'll try that. Thanks 🙏

doh777

Hopefully I haven't damaged the thread on the actual frame.

cletus

https://www.boards.ie/discussion/comment/123448379#Comment_123448379

It'll most likely be a rivnut. It's probably damaged, but can be replaced

CramCycle

https://www.boards.ie/discussion/comment/123448382#Comment_123448382

This, sounds like the rivnut slipped. Loads of penetrating spray/oil, then the pressure while unscrewing after letting it sit is your best option.

Second is a vice grip, pull and twist to apply pressure and screw out, again, loads of penetrating spray before.

magicbastarder

my eye was drawn to this and itched slightly - maybe just wipe it to confirm it's not a crack!

doh777

Not there now but will definitely check later. Thanks

doh777

Not a crack no. 🙏

magicbastarder

phew!

doh777

Thanks for all the replies Got it sorted out in the Local Bike Shop. Thanks Joe Daly Cycles 🙏 Sterling work.