RAM-202U-MT1 RAM Mounts Round Plate with 1.5-Inch C Size Ball & 5/16"-18 Threaded Hole

RAM-202U-MT1 RAM Mounts Round Plate with 1.5-Inch C Size Ball & 5/16"-18 Threaded Hole OVERVIEW The RAM-202U-MT1 consists of a 1.5" diameter rubber ball connected to a flat 2.5" diameter base with 0.31-18 female thread. This mount has pre-drilled holes, including the universal AMPS hole pattern. HOLE PATTERN 4-Hole AMPS: 1.181" x 1.496"3-Hole 120-Degree: 1.812" Diameter   BALL/SOCKET SIZE C Size (1.5")   WEIGHT CAPACITY 4 lbs   MATERIALS Marine-grade aluminum   PACKAGING TYPE Poly Bag   WEIGHT 0.19 lbs.