The RAM-B-232-90U is a universal marine grade aluminum round plate with 1/4 inch NPT female thread at a 90 degree angle at the base.
RAM-B-232-90U shown above.
RAM-B-232-90U Features:
Warranty: Manufacturer's, RAM Mounts (National Products Inc.), Limited Life Time Warranty.
Plate Size: 2.5 inch diameter with pre-drilled holes.
Plate Material: Black powder coated marine grade aluminum.
Plate NPT Size: 1/4 inch NPT female thread at a 90 degree angle at the base.
Plate Description: The RAM-B-232-90U connects to any 1/4 inch NPT male thread, including the RAM-PF-585 (RAM-PF-585-6, RAM-PF-585-9, RAM-PF-585-12, etc.) and RAM-PA-xxx series.
NPT Thread and Pipe Sizing: NPT (National Pipe Thread) is a standard used in joining pipes and fittings that have a tapered thread. As a general rule, the NPT inch size is the inside diameter of the threaded pipe and is known as the NPS (Nominal Pipe Size). The outer diameter (OD) of the pipe is shown in the table below:
