Fill in the blanks with the appropriate answer.
When using screws for the purpose of attaching receptacles to a box, the screws shall be of the type provided with a listed receptacle, or shall be _______ screws having ______ threads per inch or part of a listed assembly in accordance with the manufacturer’s listing instructions.
A) sheet-metal / 8
B) machine / 32
C) non-metallic / 24
D) equivalent / 18