RAM® Tough-Ball™ with 5/16"-18 X .75" Threaded Stud

Part#: RAP-379U-311875

UPC: 793442944147

Ball Size
Arm Sizes

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 by a multitude of interchangeable components to fit your specific needs.

A Size

Holds .5 lbs.

Trail Cameras

B Size

Holds 2 lbs.

Phones, Action Cameras, Light Duty Tablets

C Size

Holds 4 lbs.

Fishfinders, Heavy Duty Tablets

D Size

Holds 6 lbs.

Heavy Monitors

E Size

Holds 15 lbs.

Heavy Monitors

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.

Size	A Size	B Size	C Size	D Size	E Size
Short Arm	Overall Length N/A	Overall Length 2.42"	Overall Length 3.56"	Overall Length 5.69"	Overall Length 5.69"
Short Arm	Socket-to-Socket Length N/A	Socket-to-Socket Length 1.75"	Socket-to-Socket Length 2.5"	Socket-to-Socket Length 4.66"	Socket-to-Socket Length 4.66"
Medium Arm	Overall Length 2.42"	Overall Length 3.73"	Overall Length 5.69"	Overall Length 8.44"	Overall Length 12.63"
Medium Arm	Socket-to-Socket Length 1.75"	Socket-to-Socket Length 3"	Socket-to-Socket Length 4.66"	Socket-to-Socket Length 6.88"	Socket-to-Socket Length 9.88"
Long Arm	Overall Length 6"	Overall Length 6"	Overall Length 9.13"	Overall Length 12.98"	Overall Length N/A
Long Arm	Socket-to-Socket Length 5.31"	Socket-to-Socket Length 5.31"	Socket-to-Socket Length 8"	Socket-to-Socket Length 11.41"	Socket-to-Socket Length N/A

$13.49

Options

Ball Size
Arm Sizes

A Size

Holds .5 lbs.

Trail Cameras

B Size

Holds 2 lbs.

Phones, Action Cameras, Light Duty Tablets

C Size

Holds 4 lbs.

Fishfinders, Heavy Duty Tablets

D Size

Holds 6 lbs.

Heavy Monitors

E Size

Holds 15 lbs.

Heavy Monitors

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.

Size	A Size	B Size	C Size	D Size	E Size
Short Arm	Overall Length N/A	Overall Length 2.42"	Overall Length 3.56"	Overall Length 5.69"	Overall Length 5.69"
Short Arm	Socket-to-Socket Length N/A	Socket-to-Socket Length 1.75"	Socket-to-Socket Length 2.5"	Socket-to-Socket Length 4.66"	Socket-to-Socket Length 4.66"
Medium Arm	Overall Length 2.42"	Overall Length 3.73"	Overall Length 5.69"	Overall Length 8.44"	Overall Length 12.63"
Medium Arm	Socket-to-Socket Length 1.75"	Socket-to-Socket Length 3"	Socket-to-Socket Length 4.66"	Socket-to-Socket Length 6.88"	Socket-to-Socket Length 9.88"
Long Arm	Overall Length 6"	Overall Length 6"	Overall Length 9.13"	Overall Length 12.98"	Overall Length N/A
Long Arm	Socket-to-Socket Length 5.31"	Socket-to-Socket Length 5.31"	Socket-to-Socket Length 8"	Socket-to-Socket Length 11.41"	Socket-to-Socket Length N/A

Options

thread pitch:

5/16"-18 x .875"

ball size:

C Size (1.5")

weight capacity:

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

materials:

High strength composite
Stainless steel threads

packaging type:

Poly Bag

Weight:

0.17 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.

Print

RAM® Tough-Ball™ with 5/16"-18 X .75" Threaded Stud

$13.49

Add-on & Accessories

C Size Double Socket Arms

See All

RAM-201U:RAM-201U_1:RAM Double Socket Arm - C Size Medium

RAM® Double Socket Arm - C Size Medium RAM-201U $30.99

RAM-201U-D:RAM-201U-D_1:RAM Double Socket Arm - C Size Long

RAM® Double Socket Arm - C Size Long RAM-201U-D $55.99

RAM-201U-B:RAM-201U-B_1:RAM Double Socket Arm - C Size Short

RAM® Double Socket Arm - C Size Short RAM-201U-B $28.99

RAP-200-2U:RAP-200-2U_1:RAM Double Socket Swivel & Ratchet Arm - C Size

RAM® Double Socket Swivel & Ratchet Arm - C Size RAP-200-2U $39.99

RAP-201U-B:RAP-201U-B_1:RAM Composite Double Socket Arm - C Size Short

RAM® Composite Double Socket Arm - C Size Short RAP-201U-B $16.99

RAP-201U:RAP-201U_1:RAM Composite Double Socket Arm - C Size Medium

RAM® Composite Double Socket Arm - C Size Medium RAP-201U $21.99

RAP-200-12U:RAP-200-12U_1:RAM Double Socket Swivel Arm - C Size

RAM® Double Socket Swivel Arm - C Size RAP-200-12U $31.49

RAM-201MU-D:RAM-201MU-D_1:RAM Double Socket Arm with Metal Knob - C Size Long

RAM® Double Socket Arm with Metal Knob - C Size Long RAM-201MU-D $74.49

RAM-316-2U:RAM-316-2U_1:RAM Flex-Arm™ with 18" Aluminum Rod and Two Single Socket Arms

RAM® Flex-Arm™ with 18" Aluminum Rod and Two Single Socket Arms RAM-316-2U $63.99

RAM-201MU:RAM-201MU_1:RAM Double Socket Arm with Metal Knob - C Size Medium

RAM® Double Socket Arm with Metal Knob - C Size Medium RAM-201MU $48.49

RAM-201MU-B:RAM-201MU-B_1:RAM Double Socket Arm with Metal Knob - C Size Short

RAM® Double Socket Arm with Metal Knob - C Size Short RAM-201MU-B $41.49

RAM-201-SU:RAM-201-SU_1:RAM Double Socket Arm with RAM Pin-Lock™ Security Knob - C Size Medium

RAM® Double Socket Arm with RAM® Pin-Lock™ Security Knob - C Size Medium RAM-201-SU $37.99

RAM-201-BS-KEY5U:RAM-201-BS-KEY5U_1:RAM Double Socket Arm with RAM Pin-Lock™ 5-Pin Security Knob - C Size

RAM® Double Socket Arm with RAM® Pin-Lock™ 5-Pin Security Knob - C Size RAM-201-BS-KEY5U $36.49

RAM-201-BSU:RAM-201-BSU_1:RAM Double Socket Arm with RAM Pin-Lock™ Security Knob - C Size Short

RAM® Double Socket Arm with RAM® Pin-Lock™ Security Knob - C Size Short RAM-201-BSU $35.99

RAM-201LSU:RAM-201LSU_1:RAM Double Socket Arm with Steel Key Lock Knob - C Size Medium

RAM® Double Socket Arm with Steel Key Lock Knob - C Size Medium RAM-201LSU $60.49

RAM-201-S-KEY5U:RAM-201-S-KEY5U_1:RAM Double Socket Arm with RAM Pin-Lock™ 5-Pin Security Knob

RAM® Double Socket Arm with RAM® Pin-Lock™ 5-Pin Security Knob RAM-201-S-KEY5U $38.49

RAM-201U-BL:RAM-201U-BL_1:RAM Double Socket Arm with Brass Key Lock Knob - C Size Short

RAM® Double Socket Arm with Brass Key Lock Knob - C Size Short RAM-201U-BL $62.99

RAP-201-S-KEY5U:RAP-201-S-KEY5U_1:RAM Composite Double Socket Arm with 5-Pin RAM Pin-Lock™ Security Knob

RAM® Composite Double Socket Arm with 5-Pin RAM® Pin-Lock™ Security Knob RAP-201-S-KEY5U $29.99

RAM-201LU:RAM-201LU_1:RAM Double Socket Arm with Brass Key Lock Knob - C Size Medium

RAM® Double Socket Arm with Brass Key Lock Knob - C Size Medium RAM-201LU $67.49