This screw is sold as a pack of six and fits the Mack CRD 117 differential assembly, built as a replacement fastener for that application. It secures components within the differential housing on applicable Mack trucks.Interchanges:3AX1739X72KH119Mack 3AX1739BSC-0881This unit is sold in packs of 6.FeaturesSold as a pack of 6 piecesFits Mack CRD 117 differentialDifferential hardware fastenerTech SpecsPack quantity: 6 piecesFitment: Mack CRD 117 DifferentialUsed in these Mack modelsCRD 117 / CRD 118 DifferentialCRDP 95 / CRD 96 Differential