RAM® Drill-Down Mount for Garmin GPSMAP 60 Series + More
Part#: RAM-B-138-GA12U UPC: 793442909474
B SIZE
Medium Arm
Size Guide
Size Guide
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.
A Size
Holds .5 lbs
9/16" Ball
Trail Cameras
B Size
Holds 2 lbs
1" Ball
Phones
Action Cameras
Light Duty Tablets
C Size
Holds 4 lbs
1.5" Ball
Fishfinders
Heavy Duty Tablets
D Size
Holds 6 lbs
2.25" Ball
Monitors
Large Fishfinders
E Size
Holds 15 lbs
3.38" Ball
Heavy Monitors
| Ball Sizes | Short Arm | Medium Arm | Long Arm | |
|---|---|---|---|---|
| A Size | Overall Length | N/A | 2.11" | 3.57" |
| Socket-to-Socket Length | N/A | 1.67" | 3.12" | |
| B Size | Overall Length | 2.42" | 3.73" | 6.00" |
| Socket-to-Socket Length | 1.75" | 3.00" | 5.31" | |
| C Size | Overall Length | 3.56" | 5.69" | 9.13" |
| Socket-to-Socket Length | 2.50" | 4.66" | 8.00" | |
| D Size | Overall Length | 5.10" | 8.44" | 12.98" |
| Socket-to-Socket Length | 3.60" | 6.88" | 11.41" | |
| E Size | Overall Length | 7.31" | 12.63" | N/A |
| Socket-to-Socket Length | 4.98" | 9.88" | N/A | |
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