This is for a new 1964 1965 1966 1967 1968 1969 1970 1971 1972 Chevrolet Chevelle and El Camino headlight switch retainer nut. This is the special metal nut that holds the headlight switch into the dash.
SPECIAL I-5 CLASSIC CHEVY RESEARCH
I have had several comments over the years saying this nut is plastic once the customers receive it because it is so light in weight. The nut is aluminum or possibly zinc. I am including a picture of one that I shaved a sliver off of the bottom with a utility knife. You can see it is silver metal under the black paint and if you do the same to one you get, you will hear the metal to metal sound when you scrape it. Drop it on a metal table and it makes a metal to metal sound. It also is cool to the touch. None of these characteristics are properties of plastic.
If it were plastic which it is not, a plastic manufacture would not make it in silver plastic and paint it black. They would just make it using raw black plastic media and it would be a solid black material. There also would be no reason to insert a plastic sleeve in the center of a plastic nut. The plastic sleeve is required because the nut IS metal and it is needed to isolate the ground circuit as the switch has to ground to the dash on cars with metal dashboards. The plastic sleeve also stops any metal to metal contact with the headlight pull/twist shaft which would create metal shavings that would end up inside the headlight switch over years of use. GM engineering thinks of everything. The nut fits many models and years. SKU# 19757
SPECIAL I-5 CLASSIC CHEVY RESEARCH
I have had several comments over the years saying this nut is plastic once the customers receive it because it is so light in weight. The nut is aluminum or possibly zinc. I am including a picture of one that I shaved a sliver off of the bottom with a utility knife. You can see it is silver metal under the black paint and if you do the same to one you get, you will hear the metal to metal sound when you scrape it. Drop it on a metal table and it makes a metal to metal sound. It also is cool to the touch. None of these characteristics are properties of plastic.
If it were plastic which it is not, a plastic manufacture would not make it in silver plastic and paint it black. They would just make it using raw black plastic media and it would be a solid black material. There also would be no reason to insert a plastic sleeve in the center of a plastic nut. The plastic sleeve is required because the nut IS metal and it is needed to isolate the ground circuit as the switch has to ground to the dash on cars with metal dashboards. The plastic sleeve also stops any metal to metal contact with the headlight pull/twist shaft which would create metal shavings that would end up inside the headlight switch over years of use. GM engineering thinks of everything. The nut fits many models and years. SKU# 19757
