I want to build some sliding drawers for a face frame pantry cabinet. Normally the front of the drawer sliders would be screwed into the side of the face frame, with a bracket screwed into the back of the cabinet to support the rear of the drawer slider. But I need to space the sliders in about 1/2" from the sides of the face frame since the cabinet doors don't open enough to completely clear the face frame. If the sliders mount into the face frame the drawer will hit the cabinet doors.

I could build some wooden spacers to bring out the sliders, but I recently saw a nice plastic/nylon spacer that screwed into the face frame and then the drawer slider screwed into in. It went around the back of the frame so I guess you could say it was L-shaped. Got a great picture of this but can't figure out how to attach it. The sliders were Grass 6600, but I can't find this spacer in a Grass catalog so I think it may not be a Grass product.

Has anyone used or seen such a spacer? I want to know how where to buy it.

Thanks in advance!