Review on Zeberoxyz Connector 2020Series Extrusion Accessories by Keith Harris

The bolts are too long and fit the aluminum profile they are said to be made for. The bolt heads are also poorly made and many had to be modified to fit the included hex wrench or another metric/SAE size I had. I could get them to work with other screws, but I'd get something cheaper if I didn't need the screws. The receivers are also easy to mount with T-nuts, which don't offer much stability. I would look elsewhere, they are not worth the price.