Up for sale is a used Heavy-Duty On-Off Toggle Switch.

The make and part number is unknown (doesn't show in the labeling).
This is a single-pole single-throw (SPST) ON-OFF Switch.
It was pulled from the dashboard of a semi truck.

The terminals are 1/4" (6.3mm) male spade. The mounting hole is 1/2"; maximum panel thickness is 1/4".
The rating is 20 Amps @ 12 VDC. The switch is in good working condition.

Please see photos.
Questions welcome. Thanks for looking.