Fallout 4 Maximized Grab Strength: what it can do and how to change it
A simple change to your Fallout4.ini file [General] section can allow you to pick up heavier items. Here's the text I referenced in the video:
sStartingConsoleCommand=SetGS fGrabMaxWeightRunning 999999999999; SetGS fGrabMaxWeightWalking 999999999999
It needs to be on one line, and include the spaces as shown in the video.