World-Class Mounting Systems

Size Guide

Ball Sizes
Arm Sizes
X
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
B Size
Holds 2 lbs / 0.91 KG
1" Ball
Phones, Action Cameras, Light Duty Tablets
C Size
Holds 4 lbs / 1.81 KG
1.5" Ball
Fishfinders, Heavy Duty Tablets
D Size
Holds 6 lbs / 2.72 KG
2.25" Ball
Monitors, Large Fishfinders
E Size
Holds 15 lbs / 6.8 KG
3.38" Ball
Heavy Monitors
Ball Sizes Short Arm Medium Arm Long Arm
B Size Overall Length 2.42" / 6.1468cm 3.73" / 9.47cm 6.00" / 15.24cm
Socket-to-Socket Length 1.75" / 4.45cm 3.00" / 7.62cm 5.31" / 13.49cm
C Size Overall Length 3.56" / 9.04cm 5.69" / 14.45cm 9.13" / 23.19cm
Socket-to-Socket Length 2.50" / 6.35cm 4.66" / 11.84cm 8.00" / 20.32cm
D Size Overall Length 5.10" / 12.95cm 8.44" / 21.44 12.98" / 32.97
Socket-to-Socket Length 3.60" / 9.14cm 6.88" / 17.48cm 11.41" / 28.98cm
E Size Overall Length 7.31" / 18.57cm 12.63" / 32.08cm N/A
Socket-to-Socket Length 4.98" / 12.65cm 9.88" / 25.10cm N/A

RAM® Square Post Clamp Base for Posts up to 4" Wide - C Size

SKU Copied
SKU: RAM-247U-4
UPC Copied
UPC: 793442024764
01 28 232314ram 247u 41jpg

RAM® Square Post Clamp Base for Posts up to 4" Wide - C Size
Copy SKU
SKU: RAM-247U-4
Copy UPC
| UPC: 793442024764

Overview
The RAM-247U-4 is a clamp base with 3.81cm (1.5") rubber ball that will connect to rails up to 10.16cm (4") maximum in width.

Features
  • Clamping base ideal for square posts up to 10.16cm (4") in width; adjustable and easily removable
  • Included C size 3.81cm (1.5") RAM® rubber ball allows for connection to any C size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

Information

Resources

Information

Hardware Included

(2) 12.70 cm (5")/40.64 cm (16") -18 x 7.62cm (3") Machine Screws
(2) 12.70 cm (5")/40.64 cm (16") -18 Nylock Nuts

Clamp Range

10.16cm (4") max width

Ball Size

C Size ( 3.81cm (1.5") )

Weight Capacity

Standard Use: 1.81 kg (4 lbs)
Heavy-Duty Use: 1.36 kg (3 lbs)

Materials

Marine-grade aluminum

Packaging Type

Poly Bag

Weight

0.55 kg (1.22 lbs)

Resources

Instructions
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Components

01 28 232314ram 247u 4nh1jpg
RAM Mounts
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RAM-247U-4NH
RAM® Square Post Clamp Base for Posts up to 4" Wide Without Hardware


Complete Your Solution

C Size Double Socket Arms

01 28 232250ram 201u1jpg
RAM Mounts
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RAM-201U
RAM® Double Socket Arm - C Size Medium
06 09 231056ram 201u B1jpg
RAM Mounts
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RAM-201U-B
RAM® Double Socket Arm - C Size Short
06 09 231056ram 201u D1jpg
RAM Mounts
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RAM-201U-D
RAM® Double Socket Arm - C Size Long
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