Check out M12 Hex Bolts and Nuts with Rusty Iron Texture 3D model on CGTrader for $3. High-quality mesh by Doranciphu: 4066 polys, 4025 vertices. PBR, Textured, UV Mapped.
BLEND (Blender, filesize: 64.6 MB), OBJ (OBJ, filesize: 64.6 MB), FBX (Autodesk FBX, filesize: 64.6 MB), GLTF (glTF, filesize: 64.6 MB), PNG (PNG, filesize: 28.2 MB), 3DS (3D Studio, filesize: 64.6 MB), ABC (Alembic, filesize: 64.6 MB), DXF (DXF, filesize: 64.6 MB), DAE (Collada, filesize: 64.6 MB), PLY (Ply, filesize: 64.6 MB), STL (Stereolithography, filesize: 64.6 MB)