I've realized that double checking is so important, as it can happen, that the bolt doesn't close fully secure, especially with the silly bolts and locks that hutches / cages / sheds come with :roll:
..our buns can be strong and persistent, and they are awake and active a lot throughout night time..
I always double check now, and the investment of further bolts was a good start off plan for me. Though I ended up securing their entire shed so they could run around in there.. with extra bolts on said shed.