Shader Support

So Unity’s shaders are confusing me. I downloaded a test blender file to start learning texturing in unity.

The file comes with the following game textures:
CL = Color, I assume, so a diffuse map in unity
NM = Normal, I assume, which works fine
SP = Specularity I assume, which Unity doesn’t support as an image apparently? Just have sliders for colors
SH = Specular hardness I think… which Unity doesn’t have anything for I think.

What shader do I use… if unity even has it? Can I download a shader to use with these texture maps? Thanks for your help.

Well… Bumped Specular? What do you want to achieve?