Problems with Textures on Blender Models in Unity

I'm having a problem with applying textures to blender (.blend) models in Unity 5. As you can see, I've applied a material with the texture "scratched-metal", but instead of showing scratched metal on the model, it shows a grey color similar to the texture, but not the real texture. I've tried changing the tiling, trying different textures, every single option I could think of in the materials menu but still nothing seems to work.

I'm new to Unity so any reply would be very helpful.

Thanks,
possiblyfamous

 

Did you uv unwrap your model in Blender?

 

I agree with Dantus. Do the UV Unwrap and it will work like charm. I believe it's always good to unwrap uv for your models, at least I always do that on mine.