Can I Drop Toolbox Items In A Part?

Hi all,

I am trying to add a Hex nut into a part file, although it finds the hole to locate to in the part It will not allow me to select a size via a drop down box e.g. M10, M12 etc

Is it olny available in assemblies?

Thanks

Daran

PS we use SW2012 SP1

SolidworksToolbox