Luke... it might be too hot for a home oven...
according to the chart in the Member Gallery, the temperature you are looking for is about 600 degrees fahrenheit...
Perhaps you know a place that does pottery... they should have a temperature controlled oven that would reach that high?
You might also try it slowly with a propane torch and watch the color as you go and then quench in clean motor oil...make sure you don't overheat it so you don't mess with the temper. That pin takes a pretty good beating when that toggle goes up and down.