Do a search on the net for free 3D textures... there are tons of them out there. I'd be willing to bet there are some knurling patterns out there. Save as a .jpeg and you can apply it to any surface as a texture.
In defiance of common sense and utterly against all odds, I found this in Haystack 1.0. Sounds a bit like what you're looking for, but I can't get past changing classes let alone anywhere near Photoluxiness. I'm only posting this cuz I really like a longshot. To Map the Knurl Shader Click View > Color and Appearance. The Appearance Editor dialog box opens. Set the appearance Class to any procedural type other than Generic. Select Knurl for the Bump channel in the Photolux tab. Click Edit. The Knurl shader parameters dialog box opens. Specify a value for Scale. Specifying a value for Scale affects all of the other options in the editor. Edit the other attributes of the shader, if required. Amplitude—Determines the maximum height of each knurl. Blend—Determines the amount of blending between the knurl angles. If required, you can position the shader using the Position container. If the result is not desirable, edit the properties or position of the shader until you are satisfied with the result.