RAM® Pin-Lock™ 4針安全旋鈕用於擺臂萬向板

I was tired of my mount loosening on rough roads, but this threaded security knob with the key lock stays solid through every bump. The nut and key combo gives me peace of mind that nothing will shake loose.

I’d been using a standard knob on my swing arm mount, but this 4-pin security version feels much more solid and makes it harder for the mount to accidentally loosen during a bumpy drive.

The key knob is a nice touch—makes it way easier to tighten or loosen the gimbal plate without fumbling around. I swapped out the old knob on my swing arm and it locks securely with no wobble.