Edac rack and panel connectors edac 516 090 000 301 part of the edac 516 series this 90 way grey polycarbonate plug has an actuating screw to assist mating of connector halves the 516 series provides for 288 different polarising combinations ensuring the right plug is always mated with the right receptacle metal covers are also available for the five available circuit sizes to enhance the durability of the product edac 516 090 000 301 90 way plug with actuating screw