Check out U-Bolts 3D Model steel shackle 3D model on CGTrader for $5. High-quality mesh by ZahirBD: 232672 polys, 232672 vertices.
MA (Autodesk Maya, filesize: 1.35 MB), OBJ (OBJ, filesize: 73.5 MB), FBX (Autodesk FBX, filesize: 8.2 MB), BIP (KeyShot, filesize: 10.8 MB), STL (Stereolithography, filesize: 22.2 MB)