RAM® 附黃銅嵌件的鑰匙鎖旋鈕，適用於 B 尺寸插座臂

The brass insert threads smoothly onto the socket arm and the key lock feels solid, giving me real peace of mind for my expensive gear. It takes a little extra time to tighten compared to the standard knob, but the security is worth it.

I needed a way to secure my tablet mount on my boat, and this locking knob fits perfectly—the brass insert feels solid and turns with just the right amount of resistance.

The brass insert threads smoothly and the key lock mechanism feels solid, much more reassuring than the old plastic knob for my tablet mount.