About this 3D model
I made these as replacements for my nephews children's bed, I think it might have been from Ikea. The protective covers were lost on the bolts sticking out of his bedframe and can no longer be purchased so I made these and they fit right in. Different bolts have a differing amount of protrusion from the frame so I made three different sizes. I recommend printing one of each to check the fit, then print out just the sizes you need. Step file is included in case you need to make modifications for your use.