A question came up recently regarding the attaching parts for the 1969 TJ-2 louver trim. I've never really studied TJ-2, to say the least, so I didn't have an answer. But, I checked this out today when I went over to look at the wheel trim rings on a friend's original owner 1969 which has factory-installed TJ-2 trim.
The louver trim are attached via screws and well nuts. The screws were originally GM #3962676. This was a PRODUCTION-only part number; it was never available in SERVICE.
The nuts were a special well nut of GM #3945656. These were discontinued in December, 1985 but were replaced by GM #3876130, a very similar well nut previously used for attachment of the voltage regulator to the inner fender of 65-68 Corvettes. These nuts are still available from GM.
The GM #3962676 screws were a #10-24 machine screw. They were a countersunk-type, flat head phillips. They were 13/16" thread length and 15/16" overall length. They were zinc plated and the head diameter was 0.315". The only "special" feature was that the face of the head was coated with a "silverish" paint or coating, very similar to the color of the surfaces of the louvers through which the screws pass.
The screws, themselves, are very common. I purchased some in a hardware store that are virtually identical in every way. The only differences are a slight difference in length (easily trimmed if desired) and a head diameter of 0.350" (easily trimmed to 0.315", if desired).
Photos of the original screws and the hardware store screw are shown below:
The louver trim are attached via screws and well nuts. The screws were originally GM #3962676. This was a PRODUCTION-only part number; it was never available in SERVICE.
The nuts were a special well nut of GM #3945656. These were discontinued in December, 1985 but were replaced by GM #3876130, a very similar well nut previously used for attachment of the voltage regulator to the inner fender of 65-68 Corvettes. These nuts are still available from GM.
The GM #3962676 screws were a #10-24 machine screw. They were a countersunk-type, flat head phillips. They were 13/16" thread length and 15/16" overall length. They were zinc plated and the head diameter was 0.315". The only "special" feature was that the face of the head was coated with a "silverish" paint or coating, very similar to the color of the surfaces of the louvers through which the screws pass.
The screws, themselves, are very common. I purchased some in a hardware store that are virtually identical in every way. The only differences are a slight difference in length (easily trimmed if desired) and a head diameter of 0.350" (easily trimmed to 0.315", if desired).
Photos of the original screws and the hardware store screw are shown below:
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