FWIW, I've used W1 from Mcmaster Carr on my hoe, no problems. Main reason is
they will sell a three foot piece and have it to your door by tommorrow.

4140 would be another good choice.

Karl


"tm_wilhelm" wrote in message
...
I'm making a mechanical thumb for a kubota L-48 backhoe. The pivot pins
are 1.25" x 10". What type steel would you recommend for the pins. I
will need to drill and cut these, but they obviously need to be tough
enough not to bend/shear.