The captive screws with hex socket heads prevent slipping during assembly. The design of these captive screws allows for ‘Mate before Lock’ – connectors can be fully mated before the screws need to be engaged. This provides for faster and easier assembly. Reverse Fix options are available for all versions of board and cable connectors, providing board-to-cable combinations with a choice of either Male (standard fix) or Female (reverse fix) on the PCB.