It wasn't a washer change, it was a piss poor design and implementation along with poor communication. Instead of being supported through to the ceiling, the lower walkway was supported from the upper one.
https://en.wikipedia.org/wiki/Hyatt_Regency_walkway_collapse
114 dead
216 injured
If you're wanting modular you could just use a heavy angle bracket and a couple of bolts to the upright and a couple to the shelf. Similar to what you proposed in the OP.
Saw something the other day that got me to thinking.... We all know the smell of the off gassing Craftsman(et. al.) screw drivers. The smell is from an acid breaking down/being released(from what I understand).
Has anyone used a baking soda/water mixture to clean their screw drivers? From...
My dad has a 3 HP/60 GAL Campbell Hausfeld air compressor that appears to have a build date of around April of 2009. Been running fine for years, now all of a sudden it doesn't want to pump past 90-100 PSI.
If you try to start it with 80-90 PSI in the tank the motor will make a handful of...
With wrenches and whatnot I generally pull towards me, but with blades I push away, unless it's a small blade and intricate work like cutting an apple with a pocket knife, etc... My thinking is that if the wrench slips I have more control over it coming towards me versus bashing knuckles into...
Any chance you want to share the STL for the light clips? I have these same lights and I'm looking to add some more and these would work great for my application.