Does anyone know the part numbers for the screws that attach the courtesy lamps (under the dash, on each end of the dash, and they illuminate when the door is open)? Both of my copies of the 1970 Assembly manual are not clear (page no. 12-8.2). The left screw appears to be 942??14 and the right 9427711, but I cannot find pictures of either.
Looking in the "big" Buick Assembly shows part number 9420914 for both sides. I'd still like to know what 9427711 (if that is indeed the correct part number) looks like. Perhaps it's just a bit longer or shorter?
Perhaps this is 9420914, which AMK lists as a #8 x 5/8"? This screw is indeed 5/8" long. I don't know what #8 means?
A number 8 screw refers to width. The 8 May actually refer to 1/8" as that is about the size. Number 8 screws are used in numerous areas under the dash and interior. Both black phosphate and zinc were used. That is a very common screw used on the courtesy lamps.
Off the top of my head the number you refer to may just have a loose washer attached to it. I can't remember. Either will work.
Here's the original attaching screw for a Flint-built 1972 Skylark, with a loose washer attached. Both sides used this same screw. Thank you Dave for your help with this. Yes, it's a small thing but I'd like to get it as right as I can.
You are like me. I like to just use originals. I have found odd looking screws that were factory installed but not always consistant.
Ah, mystery solved. On the driver's side, the courtesy light is moved slightly inboard, just to the right of the parking brake. A simple hole is drilled in the bottom of the dash for the attaching screw, so a minimal-sized washer is needed. On the passenger side, there's an oblong oval slot that does require a relatively large washer. You can see on the attached picture that the screw head is smaller than the slot. My Flint-built '69 Skylark does indeed have these two different sized screws. The Flint-built '72 Skylark mentioned above simply uses the larger washer in both locations.
