RAM® Pin-Lock™ 交換用7ピンキー D・Eサイズソケットアーム用

I was worried about finding the right replacement, but this key fits my existing Pin-Lock socket arm perfectly after counting the pins. The plastic knob feels sturdy enough to handle regular adjustments without stripping.

Fits perfectly on my existing D size arm mount — the 7-pin design lined up exactly with the security nut. Much sturdier plastic than the original, and the knob's grip is just right when you need to tighten or loosen it.

Lost my original key after a roof rack project and this replacement clicked right into the Pin-Lock nut on my 2.25" arm, no wobble or fuss. It’s machined precisely enough that I didn’t have to force it, which I was honestly worried about. Glad I double-checked the size before ordering, but once matc