That lead nut assembly, typically it has two screws.
But the bracket normally only has two screw holes too instead of four.
The brackets normally mounted to that assembly to start with I believe.
Maybe they made an update to that bracket and it works with one of their other machines .needed a 4-hole mount as well as the two hole mount and they just have an updated there assembly instruction imagery?
ahh I see, its definitely supposed to be a two bolt bracket. Im wondering if I assembled it wrong. I dont have any spare parts left. possibly an updated bracket with a older model lead nut?
You are the second person I’ve seen with this issue in the last week. I have to assume that Langmuir made a change to that bracket and some old lead nuts are still being sent out. You should contact Langmuir support.