ULA Attachment Bracket Version 1

Hi all this is my second solution to the challenge. I've attached the file in IGES, STEP and STL. Mass = 0.080878lb (36.685493g) Max Stress (no weak point) = 2764.624psi Min Factor of safety (no weak point) = 3 Max Factor of safety = 3 Force applied = 600lbf, 1000lbf and 1500lbf (Please see the picture attached). The attachment bracket can still survive when 1500lbf force is applied in negative z direction. Thank you very much for your viewing and download, and for the thumb ups, if any.