031-5652 is a nickel plated hex nut designed for use with BNC PCB bulkhead receptacles. The hex nut features a 0.560 inch (14.2 mm) hex size, 0.109 inch (2.8 mm) thickness, 0.625 inch (15.9 mm) outer diameter, and .500-28 UNF-2B thread specification. The nickel plating provides corrosion resistance and durability. This accessory is commonly used to securely mount BNC bulkhead receptacles to panels or enclosures in RF and video applications, and is supplied in convenient packages of 100 pieces.