I am designing a PCB board and was wondering if there is a reason not to use ring terminals directly to a PCB. The PCB could have a pad surrounding a hole like I often see as ground connections. A small bolt could go through the PCB with two nuts, one holding it to the board, and another to hold the ring terminal down.
I've tried those little green screw terminal things where you can stick a wire in the side and screw down the top, but they always seemed flimsy for the relatively big wire I am using. I've also tried terminal blocks where one side has a wire soldered to the PCB and the other side can be connected to with a ring or spade terminal, but that seems like extra work when the PCB could be designed to screw to directly.
Just wanted to check if I was missing anything obvious here as to why not to do this.
Best Answer
Yes this has been done on boards used in "heavy industry" situations where you need a high current rating, without being restricted by the pin spacing (determining the voltage rating) of connectors. There are a few considerations to doing this succesfully
An alternative which works better in most situations, because it only requires access from one side of the board, is quick disconnect tabs, which are available as single, solder in parts. Article discussing relative merits.