Every Phase Dock WorkBench comes with a good selection of hardware you need to assemble the Click/Slides, plus some other items for cable management and build a two-board tower.  The purpose of every item is described in the WorkBench User Guide.

You can also get a package of Direct Mount Hardware from us. It will have enough standoffs and screws (20 each) to direct-mount about five boards or other electronics.

But if you are looking for other or additional items.  My “go to” sources are my local Ace Hardware and BoltDepot.com.

See also: Ask Chris  and  Source Extra Hardware  both on this website.