This is a 3D PBR asset package containing hi-end FBX 3D meshes of lug nuts, bolts with custom hand made PBR textures.
Is now available in the asset store:
https://assetstore.unity.com/packages/3d/vehicles/land/go-nuts-4-aftermarket-trim-color-stylish-cool-automotive-customi-151486
Intended for virtual automotive customization; Made specific for a virtual visualization (VR), desktop game development, cinema, and automotive design. For more Nuts look into my asset store user.