Radius arm bolt trouble
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Senior Member
Joined: May 2018
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From: Acadiana
Radius arm bolt trouble
I tried to remove it and it broke. Can anyone tell me if this is a special bolt or regular one? Despite the head of the bolt broke off the radius arm is still stuck in place. I suppose it should come off? I've never removed the radius arm before and have no clue how it is designed. 
Edit: OK, the arm came off and now I understand its design. Does anyone know what size/thread is this bolt?
Edit: OK, the arm came off and now I understand its design. Does anyone know what size/thread is this bolt?
Last edited by Segfault; Jun 3, 2019 at 05:59 PM.
Veteran Member
Joined: Jan 2013
Posts: 5,253
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From: Calgary, Canada
It is a special bolt. The thread is 7/16-20 UNF, about 1.5" long. You could probably use a regular bolt. Use loctite on the threads, both to lock the bolt and to keep water out of the threads. The original bolt has a drilled head for lock wire.
Junior Member
Joined: May 2026
Posts: 1
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From: wiltshire
I tried to remove it and it broke. Can anyone tell me if this is a special bolt or regular one? Despite the head of the bolt broke off the radius arm is still stuck in place. I suppose it should come off? I've never removed the radius arm before and have no clue how it is designed.
Edit: OK, the arm came off and now I understand its design. Does anyone know what size/thread is this bolt?
Edit: OK, the arm came off and now I understand its design. Does anyone know what size/thread is this bolt?
Thanks
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