Intel NUC6i7KYK - Change the Intel NUC Lid

Intel NUC Kit NUC6i7KYK User Guide
7
Change the Intel NUC Lid (Optional)
Follow these instructions to replace the factory-installed skull lid with the one included in the box.
Remove the six screws on the top cover of the chassis using the 2mm hex key (Allen wrench) included in
the box and lift the cover.
Secure the alternate lid to the chassis with the six screws, using the hex key (Allen wrench).