RAM® Ball Adapter with 1/4" - 20" Threaded Hole and Hex Post - C Size

Part#:RAM-337U UPC:793442909511

RAM® Ball Adapter with 1/4" - 20" Threaded Hole and Hex Post - C Size

Part#:RAM-337U UPC:793442909511

Ball Size

B Size C Size

Size Guide

Size	Ball Diameter	Max Load	Best For
A	0.56″ (14.3 mm)	0.5 lb (0.2 kg)	Action cameras and other ultra-light devices
B	1″ (25.4 mm)	2 lbs (0.9 kg)	Phones, GPS units, and small tablets — the most common size
C	1.5″ (38.1 mm)	4 lbs (1.8 kg)	Large tablets, fish finders, and rougher rides
D	2.25″ (57.2 mm)	6 lbs (2.7 kg)	Rugged tablets, laptops, and heavy equipment
E	3.38″ (85.9 mm)	15 lbs (6.8 kg)	Large 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.

Availability Only a few left

319 kr

Incl. VAT

In stock — ready to ship

Backed by manufacturer warranty

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Expert product & mounting support

Recommended add-on

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Details

Information

Information
Resources

The RAM-337U includes a 1/4"-20 female thread hex hole connected to a 1.5" rubber ball.

thread pitch	1/4"-20 x 1/2" (female)
ball size	C Size (1.5")
weight capacity	Standard Use: 4 lbs Heavy-Duty Use: 3 lbs
materials	Marine-grade aluminum
packaging type	Poly Bag
Weight	0.068 kg

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Ball size C

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The RAM-337U includes a 1/4"-20 female thread hex hole connected to a 1.5" rubber ball.

thread pitch	1/4"-20 x 1/2" (female)
ball size	C Size (1.5")
weight capacity	Standard Use: 4 lbs Heavy-Duty Use: 3 lbs
materials	Marine-grade aluminum
packaging type	Poly Bag
Weight	0.068 kg

Size Guide

Reading part numbers

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