The RAM locking knob, includes a brass 1/4"-20 thread, for 1" (B size) socket arms; this allowing you to disengage the screwing of the knob. Once you have set your mount in the location you need, you can lock it in place and feel safe that your mounted device will stay right where you left it.
Material
Powder Coated Marine Grade Aluminum
Ball Size:
1" Rubber Ball "B" Size
Note
The part number reflects product packaged in retail bag.
B size 1" (Holds up to 2 lbs)
Accessories
Powder Coated Marine Grade Aluminum
Retail Packaging