$2.99 30 Hard Surface IMM Corner Brackets Low-poly 3D model by Yacine-BRINIS. Available on CGTrader. Check it out on CGHub.
STL (Stereolithography, filesize: 2.27 MB), OBJ (OBJ, filesize: 2.75 MB), BLEND (Blender, filesize: 1.35 MB), FBX (Autodesk FBX, filesize: 1.3 MB), ZTL (Zbrush, filesize: 1.16 MB), DAE (Collada, filesize: 1.72 MB), OTHER (Other, filesize: 8.89 KB)