RAM® Pin-Lock™ Replacement 4-Pin Key for D & E Size Socket Arms

The RAP-S-KEYN5-4U replacement key knob is compatible with 2.25"/3.38" diameter D/E size arms and mounts that contain the Pin-Lock™ security nut. Verify the correct replacement key knob by matching it's node number pattern with the node number pattern found on the security nut.