Substance "random mask" instance

bcottage

hey guys, i was wondering if the tile sampler "mask - random" input can give random results if you were to instance the node? there must be a way, i just cant figure it out. 

For the graph in question i am making a wood plank material and want to randomize the nail generation so i need all 4 nails to be connected to a random mask slider.

Thank you for your help in advance. 

poopipe

The node has a random seed which will affect it.  As will the random seed from any parent graphs.