MK7 MK8 heat sink 40x40x11
A 40mm x 40mm heatsink, these ones are also used on the Makerbot 3d printer. This heatsink comes with drill holes already for the Makerbot but can be used anywhere you need to get heat away from a component such as a high power LED.
MK7 MK8 heat sink 40x40x11 spec:
Center hole size: 12mm
Screw mounting holes 3mm,
Mounting holes from 31mm