PBR Metallic Box Seamless Tile texture. Single node group setup includes:
Texture Mapping * Texture Scale * Aspect Radio * Rotation * Displacement
Color Adjustments * Surface Color Variation * Unpaint * Color Inverter * Others (Contrast, Gama, Hue, etc.)
** Pure PBR config attached **
Note: Use Cube Projection at UV Editor to properly display the box texture.