Overview Reviews Product Description Green grounding screws are used to secure the grounding wire in an electrical box and serve to clearly identify that the assembly conforms to the established electrical code. Papco Screws Catalog Product Videos Custom Field Box quantity 500 Plating Zinc Diameter #8-32 Length 5/16" Bit type Robertson Product Reviews Write a Review Write a Review × Paulin #8-32 x 5/16" Truss Head Steel Grouding Screw 500 Pc. 537-168 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *