These 3M Jack Socket Screws are for Mini Delta Ribbon (MDR) connectors, they are stainless steel with a M2.5 main thread with the head having a #4-40 UNC socket thread. The design of these Jack Socket M2.5 Screws include a thread locking insert.

Mini Delta Ribbon connectors, or MDR connectors, are a type of D-sub connector designed to accommodate flat ribbon wiring with pre-loaded ribbon contacts. They are typically used on PCB boards and combine excellent mechanical strength and connection conductivity.

3M is a trusted name in connector and wiring solutions, providing high quality cables, connectors and accessories. From industrial computing to domestic applications, 3M provides the reliable and versatile product range you need.

Mini Delta Ribbon (MDR)

Cable mount plugs and PCB mount receptacles with pre-loaded ribbon contacts for long life
Finger releasable latching backshells for cable mounting applications

A Mini Delta Ribbon (MDR) system designed for high density I/O applications on a 1.27mm pitch.