Captive nut broken off on rusted bolt for nerf bar end plate

WildCrustacean

Wincher
Joined
Jun 24, 2023
Messages
51
Next episode in broken bolt adventures:

I took off the nerf bars (which I think looks better except now my 10 year old complains that "yOuR cAr iS tOo TaLL"). In that process one of the bolts broke because it was rusted in really bad. I was attempting the drill / heat / bolt extractor routine again, but this time the whole captive nut just broke off under the end plate for the bar:

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This leaves me with a nice hole but with no threads.

I'm starting to think that these nerf bars are just done and too rusted to repair without cutting out the end plates and welding in something new, but wanted to ask if anyone has any magical ideas for repairing this, especially without welding.
 

nakman

Club Secretary
Staff member
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Aug 23, 2005
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Riv nut? the hole size for an M8 riv nut is 7/16... how big is that hole right now?
 

WildCrustacean

Wincher
Joined
Jun 24, 2023
Messages
51
Riv nut looks promising, it almost looks like what was in there before that broke off.

The hole is 15.2mm so ~9/16? I'll do some more research and see if that might work.
 
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