RAM® Large Marine Electronics Mount - D Size Long RAM-B-238-OT3 The 3" bolt will allow

The 3" bolt will allow the swing arm to connect to a RAM-109 base

The RAM-B-177-C-202 consists of a glare shield clamp base

75" square plate contains 4x100mm holes and 4x75mm holes in each corner

The wing nuts on the end of the screw can be tightened by hand

The RAM-B-126-231Z-2 consists of a Medium length B-size arm with our ATV/UTV Ball Base for rails up to 3

RAM® Large Marine Electronics Mount - D Size Long RAM-B-238-OT3 The 3" bolt will allowThe RAM D 111U E consists of a 3. 68" diameter round base, LONG length double socket arm and 11" x 3" rectangular plate. The round base contains pre drilled holes, including two holes at 180 degrees and three holes at 120 degrees. The rectangle plate contains different combinations of pre drilled holes which will match up to many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and more.