Black Widow Corner Bracket

My own take on a corner bracket design, I'm a fan of "nuts and bolts" look so designed it with a specific look in mind.

Required: 15mm low profile M5 screws + T nuts

Keep in mind, each bracket takes 5 screws, 3 for the vertical beam, 2 for the horizontal one, 8 brackets will require 40 screws/nuts.

Very solid and sturdy, small riblets connect every pressure point, at 15% infill it was already very hard to cause any deflection.