M12 Hex Bolts and Nuts with Rusty Iron Texture Fine Threads 3D model is available on CGTrader for $3. Original author: Doranciphu. Specs: 4636 polys, 4595 verts.
BLEND (Blender, filesize: 64.8 MB), OBJ (OBJ, filesize: 64.8 MB), FBX (Autodesk FBX, filesize: 64.8 MB), GLTF (glTF, filesize: 64.8 MB), 3DS (3D Studio, filesize: 64.8 MB), ABC (Alembic, filesize: 64.8 MB), DXF (DXF, filesize: 64.8 MB), DAE (Collada, filesize: 64.8 MB), PLY (Ply, filesize: 64.8 MB), STL (Stereolithography, filesize: 64.8 MB), PNG (PNG, filesize: 28.2 MB)