Mounting non LEGO parts by using a M6 metric screw

CAUTION: Children should ask for parents advice before using drilling and cutting devices! First you need to drill a hole from the bottom side into a standard LEGO brick. Use a 4.5 mm drill. The tube in the brick helps to center while drilling. Then you can cut a M6 metric thread also from the bottom side. Finally you can use a M6 metric screw to mount anything you want.

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