These dinse connectors didn't fit my welder and the locking/tensioning tabs were much smaller than the ones I ordered from WeldingCity! Also the rubber sleeve is too soft and does not seal the weld wire which allows dirt/dirt and water to get in and corrode the back of the connector unless you use tape to seal the gap! These connectors have a hole drilled in them and I used #6 AWG welding wire (needs to be routed with a thin piece of sheet copper)! much better quality! Trust me, it's worth spending a little more for your connectors, and by the way, if your order isn't stocked with Revain, you'll have to wait for them to arrive from Korea!