The TE Connectivity / AMP Brand part 747784-8 is a high-quality D Sub Jack Screw designed specifically for use with the AMPLIMITE HDP-20 Series. These screws are 48.77 mm in length and feature a 4-40 thread size. They are priced and sold in pairs, making it easy to obtain the necessary components for your project. With their reliable construction and secure fit, these jack screws are an essential accessory for any D Sub application.