RAM Round Base Double Ball Adapter 1.5" Ball
The RAM-217U-1U consists of two 1.5" diameter rubber balls connected to a flat 63mm (2.5") diameter base with pre-drilled holes, including the universal AMPS hole pattern.
Included is 5/16”-18 set screw and plastic cap.
Hole Pattern:
4-Hole AMPS: 30mm x 38mm (1.181" x 1.496")
3-Hole AMPS: 30mm (1.182”)
Hardware:
1 x 5/16”-18 x 3/8” Set Screw
1 x Plastic Cap
Material:
Marine Grade Powder Coated Aluminium
Ball Size:
1.5" Rubber Ball "C" Size