We got a limited quantity of really nice large surplus heat sinks which are ideal for mounting rectifiers on for your wind turbine projects... or - a variety of other electronics projects. These are new (never used) but surplus and some have very minor damage to a fin or two but overall they are in near new condition.
The heat sinks are 6" wide, 8" long and 1.625" tall. They have 40 fins, each fin is 6" long, 1.25" tall. The total surface area of the 40 fins combined is 600 square inches.
The back has several drilled/tapped holes, were not sure what the thread is, it's probably metric.
It's a big heat sink with a lot of surface area, they're ideal for wind turbine projects.