300 lb Test Strong Wall Coat Hook

thingiverse

I know the biggest, baddest hooks! 300 lb tested. About 5.5 inches (14 cm) tall and stick about 2.75 inches (7 cm) out from the wall. They are compatible with standard drywall or decking screws. I should have taken a proper picture of my test rig, but it broke before I could take one with the scale above 250 lbs. None of the hundreds of hooks found on thingiverse were designed with strength in mind. Most seem to have sharp corners and lots of weak points. I wanted something that can be used for hanging hammocks as well as simple coats and purses. The screws are spaced far apart to maximize pullout strength, especially when screwing into weaker materials such as drywall. The "FDM Reinforced" models have a sub-millimeter wide cut following the upper edges of the hooks. This forces slicers to add more walls there. Print with at least 3 walls for a 0.4 nozzle and 25% infill. Cubic was used for testing, but I'm unsure what the strongest infill is. The lower hook of the "Super Heavy Duty FDM Reinforced" print was tested to break above 300 lbs using cheap zyltech pla. The upper hook should hold more than that.