Radius arm bolt

[M-100]

Does anyone know who sells radius arm bolts. The big bolt that holds the spring ,I beam and radius arm together.

[basketcase0302]

Green Sales would prob have it if you can't find it anywhere else, (but NOS price might not be cheap).

http://greensalescompany.com/

[M-100]

I found new bolts but the threads were to short. I found a solution also. I had a machinist cut more threads on the bolts.

[MadMike]

I found new bolts but the threads were to short. I found a solution also. I had a machinist cut more threads on the bolts.

I wouldn't do that on such a critical component.

Bolt threads are rolled, there is no material taken away from the bolt shank and the threads are created through impacting the surface which also prevents stress risers in the surface of the bolt and maintains grain. A cut thread is significantly weaker than a rolled thread, you will not be able to torque the bolt to the correct yield safely. Cutting threads on a bolt shank, especially on such a critical bolt, is not safe.

If common fastener stores do not have the bolt size you need, check with an aeronautical supply shop.

I would highly suggest using hardened washers to take up the shank length so you can apply a proper clamp load rather than cutting threads onto an existing bolt. Don't cut new threads.

[M-100]

Thanks Mad I didn't know that. What about a bolt that has been heated . I had to use a torch on the nuts to get them off

[MadMike]

What about a bolt that has been heated . I had to use a torch on the nuts to get them off

As long as you didn't burn the bolt, discolor it, or grossly heated it unevenly, it should be fine to reuse.
I've reused fasteners I've heated up to break free, it's common enough to do.
If heat was applied evenly and the bolt/nut is not discolored, it should be fine to reuse.

[M-100]

The nuts took the brunt of the heat. They are easy to replace . So I will use new nuts and old bolts. Thanks again mad you helped me to not get in a bad situation.