How to get an insulator off of a metal mounting?

[bottles_inc]

Found this Chance ceramic insulator while wandering around the woods, but it's stuck to a metal pole. Anyone know how to remove it? I can turn it side to side a bit like it's gonna unscrew out but after I turn it too far one way or the other it won't budge.

 

[UncleBruce]

It will screw off of the metal pin. The threads on the pin are lead and are corroded. Be careful the porcelain edges are sharp. Secure the pin in a vise if you can. It will come off counter clockwise with some effort. You'll probably have to work it back on and off until it loosens.

Found this Chance ceramic insulator while wandering around the woods, but it's stuck to a metal pole. Anyone know how to remove it? I can turn it side to side a bit like it's gonna unscrew out but after I turn it too far one way or the other it won't budge.

 

[bottles_inc]

It will screw off of the metal pin. The threads on the pin are lead and are corroded. Be careful the porcelain edges are sharp. Secure the pin in a vise if you can. It will come off counter clockwise with some effort. You'll probably have to work it back on and off until it loosens.

Thanks for the vice tip. Worked great