This is the BEST product I have bought in a long time!!! The design, quality, workmanship, and even how well it was packaged for shipping is all as good as can be. They fit the toolboxes perfectly and are seriously a game changer for folks that have wanted to mount stackable toolboxes in a way that they are secured but can still be removed. I've been a fabricator for 38 years and I honestly wouldn't change a thing about them. Communication was great and they even worked with my travel schedule so I could be home to receive them. I'm recommending these to everyone I know from now on. A++++ to this company!!!!

I was so excited when someone finally came out with mounting plates for the build-out system and I was so pleasantly surprised at the build quality and the machining accuracy of these mounting bases 10/10 would recommend or buy again.

I bought 4 milwaukee pack out brackets for my work van. I have tried the milwaukee version and they are plastic and bulky and 3d printed ones didnt hold up. These mounts from BOCO are solid i think 10 gauge steel and I've held up really well woth no rattling or issues in my van.

I like these, they are much more compact than what Milwaukee offers. I had them powder coated in silver vain and they look awesome. I love the bonus half rack they sent me. That’s the mark of a nice company.

What a great option for mounting the Build-Out boxes to a surface! The specs say that the mounting bolt size (or screw?) is 1/4-inch, but I have to say that a 5/16" carriage bolt is a *perfect* fit. I mounted my case to a wooden deck. Carriage bolts cannot be removed from the top; so, this increases security for the base. I was surprised that the locking mechanism, when open, leaves the boxes free to lift out without using their red latches. I wasn't sure what to think about that at first. Given the heavy weight of my bottom box, having it completely unlatched makes it easier to remove without having to manipulate the red latches AND grip the heavy box for lifting. So, I approve! Not sure if those mounting to a wall would feel the same. Once closed, the locking mechanism is solid and accepts a standard padlock. The powder coat upgrade is beautiful and worth the extra price. Overall, this is a very solid base for mounting and some security. Great job!