18-8 Stainless Steel Socket Head Screw. 1/4" in length. Use for the regular flange Quick Change connectors for the Bird Watt meter. Head diameter of 0.27" with a head height of 0.164" clears the larger 7/16 DIN connector threads. Socket head takes a 9/64" hex tool. Screw has a Rockwell B70 hardness. You get 8 screws, enough to do 2 connectors.

(Bird and QC are trademarks. This item is not a Bird product)