Patented

RAM® Flex-Arm™ with 18" Aluminum Rod and Two Single Socket Arms

Part#: RAM-316-2U
UPC: 793442939518

Kit Components

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$65.49
RAM® Round Plate with Ball - C Size

RAM® Round Plate with Ball - C Size

$19.49

Overview

The RAM-316-2U consists of a 18” rigid aluminum rod and 2 (qty) single open socket arm for 1.5" diameter balls. The 18" rigid aluminum rod can be bent to position your device to its optimum viewing location. At both ends of the aluminum rod is a swivel mechanism, allowing the open socket arms to turn 360 degrees.

hardware included:

Assembly Hardware

ball size:

C Size (1.5")

weight capacity:

Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs

materials:

Marine-grade aluminum
High strength composite

packaging type:

Poly Bag

Weight:

1.18 lb

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

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Knowledge Base: Socket Arms
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RAM® Flex-Arm™ with 18" Aluminum Rod and Two Single Socket Arms
$65.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size 1" ball
  • C Size — this product 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C — this product1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.