RAM 1/4" NPT Female Threaded Hole Base with 1" Ball
Part# RAM-B-218-1
The RAM-B-218-1 consists of a 1" ball and 0.25" NPT female thread. This part connects to any 0.25" NPT male thread, including RAM-PF-585-X flex arm series mounts and RAM-PA54XX rigid arm series mounts.
Compatible Arms and Mounts
RAM 1" Ball Long Length Double Socket Arm with 2.5" Round Base that contains ...
RAM Long Double Socket Arm with Retention Knob for B Size 1" Balls
RAM 18" Long Rigid Aluminum Rod & (2 QTY) Single Socket Arms for 1" Balls
RAM Mounts is a corporate brand of National Products Inc. (NPI) in Seattle, Washington. NPI offers an adaptable set of manufacturing capabilities with centralized manufacturing, production, and distribution operations. This means you receive the strongest mount available and the most innovative technology.
MODULAR DESIGN
The rubber ball and socket design offers a secure hold with infinite options and vibration dampening for demanding environments.
BEST WARRANTY
Our philosophy is simple—build the best products available. And so our warranty is simple too. If we built it, we guarantee it. We are confident in the quality of our products, and with our warranty, you can be too.
MADE IN AMERICA
We don’t use call-centers, we don’t outsource labor, and we don’t ship opportunities overseas. Our all-American staff designs, manufactures, assembles, and sells our products right here, and ships them straight to you.
Specs & Features
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:
| NPT Size (NPS) | Pipe Outer Dia. (OD) | Threads per inch |
| 0.25" | 0.540" | 18 |
| 0.50" | 0.840" | 14 |
| 1" | 1.315" | 11.5 |
Material:
Powder Coated Marine Grade Aluminum
Ball Size:
1" Rubber Ball "B" Size
Note:
Part number reflects product packaged in clear clam shell for store shelf display.
Weight:
0.19 lbs.