M8 nut knob

M8 nut knob with a little bit longer shank and hole for the bolt to pass through, I printed it with scale 102 after that inserted the nut (standard M8 high 6,5mm) and annealed the thing in hot water (poured approx 2dl, 70 C hot water and let it cool down), also I enlarged the wall thickness in Cura to 5 layers for better torque strength,... seems nice solid