QIJINTRID 20Sets 3030 Series Aluminum Profile Connector,20pcs 3030 Corner Bracket,40pcs M6 T-Nuts,40pcs Hex Screw Bolt and 1pcs Wrench,for T Slot Aluminum Extrusion Profile

I used the profile connectors to add some bracing to a workbench I have which is made from 3030 aluminum rails. I added some vertical braces and needed these profile connectors to connect the vertical braces to the adjoining rails. The product says that it comes with a set of 20, and it did come with 20 profile braces, however, there was not enough of the screws and nuts to actually use all 20 of them. Luckily I didn't need all 20 and only needed 16, but even then, there were not enough screws and nuts for all of them.