Patented

RAM® Twist-Lock™ Suction Cup Mount with Round Plate & 1/4"-20 Stud

Part#: RAM-B-166-202AU
UPC: 793442921162

Compatibility

Cameras

that contain 1/4"-20 Female Threaded Hole

Kit Components

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$57.49

Overview

The RAM-B-166-202AU consists of a 3.3" diameter suction cup twist lock base, double socket arm and round base adapter that contains a 1/4"-20 male camera thread. The suction cup base is designed to have a strong hold on glass and non-porous plastic surfaces, including RAM adhesive disks. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The camera base contains a 1" rubber ball that is connected to a 2.5" diameter round base. Also, included is a 1/4"-20 threaded steel stud, centered, the round base provides support and stability for cameras that rest on top of it. The male 1/4"-20 threaded steel stud will connect to any standard female thread found on camcorders and digital cameras.

hardware included:

Assembly Hardware

product dimensions:

Overall Height: 6.69"

suction size:

3.3" Diameter

socket to socket length:

3"

hole pattern:

4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter

thread pitch:

1/4"-20 x .25"

plate size:

2.5" Diameter

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

Marine-grade aluminum
High strength composite

packaging type:

Poly Bag

Weight:

0.67 lb

Additional Information:

*The rubber material used in suction cups is considered a general wear item and is not covered under the lifetime warranty. Learn more about the RAM® warranty policy here.

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.

Print

Instructions

Documents

QUESTIONS & ANSWERS

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RAM® Twist-Lock™ Suction Cup Mount with Round Plate & 1/4"-20 Stud
$57.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 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
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (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.

Add-on & Accessories

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