201501-1 is a roll pin designed for use with turnable jackscrews in AMP M Series pin and socket connectors. This fastening hardware component is used specifically with Long, Short, and Short-Short style turnable jackscrews to enable secure mating and demating of connector assemblies. The roll pin is manufactured from nickel-plated steel and is compatible with standard, posted, and special application connector housings across multiple position configurations (6 through 104 positions). It provides reliable mechanical retention and alignment for jackscrew assemblies in cable-to-cable connector applications. The product is RoHS compliant and suitable for use in industrial, telecommunications, and aerospace applications requiring robust connector fastening solutions.