Hammock attachment bracket for home

Hi, :D I decided (yes, maybe a stupid idea) to print the brackets for my hammock at home.The bracket is printed from PET-G (Alzament) although it was originally designed for PAHT-CF, but it seems that PETG is strong enough. Please do not print it from PLA. The holes are for concrete screws of size 10mm. I have no experience how to anchor in American paper walls. Anchors that secure themselves when tightened, or chemical anchors and threaded rods are suitable for concrete. Please consult and follow the correct type of anchor, dowels according to the type of material! The print (if you downloaded only the STL and not my tested print profile) contains 21 perimeters (Originally 20, but one more just in case), 25 upper and lower layers, triple grid filling. I weigh over a hundred kilos (220 lbs) and I tried jumping a little in the hammock, without any cracking sound. Let the material cool down after printing, tighten it with care, it is still plastic. Test slowly and consider that the ancho