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Captured square nuts

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G

Greg_Blake

Jedi Hopeful
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Anyone have a good resource for the 1/4-28 square nuts our cars seem to offer u to the corrosion gods so liberly?
TRF thinks they are gold
CN1/NUTNut,square, captive10.40 .40
 
I went on McMaster's site, and found 1/4"-28 captive nuts in the cage...part # 90955A113. I found them under "weld nuts". I've used these. They aren't quite original looking, but work actually better then the originals. They are $5.78/10 pack.

I then looked for just the square nuts, and they didn't list any in 1/4"-28. I do remember purchasing some from somewhere, but the width of the square was smaller then the OE's, and the the fit in the cage was too loose. Unless you want the whole assembly, I'm afraid you might have to pay the piper unless somone else can come up with a source.

Besides, there are only about 458 of them in the car. /bcforum/images/%%GRAEMLIN_URL%%/jester.gif
 
I paid a machine shop $1.00 each for them to make me all the ones I needed when I did my TR3A restoration from 1987 to 1990. They are made out of stainless steel and all my bolts are stainless as well. The nuts were made the proper size not to rotate and after 94,000 miles since 1990, I took off my front bumper and valance in a little over an hour. It's nice to have bolts that un-bolt so easily. I used them all over. For example, I can remove all the flat-head screws holding a door in about 3 minutes.
 
Are capture nuts and cage nuts one and the same? Most cities have a specialty store that carries such. I get everything from a shop in Lafayette, LA, A-1 Bolt, that has every conceivable fastener know to man. I just bought a large handful of grade-8 fasteners for less than 5 bucks.


On the subject of fasteners, my new gear reduction starter has two long, thin recessed fasteners that hold the adapter plate onto the body of the starter. I brought these to A-1 to see if I could find some 5mm longer so that I could use a nut backup. These bolts the counter-guy told me were indeed grade 12.5, the strongest made. I find it curious that such a strong bolt would have fine threads and be threading into aluminum yet. Hmmmm. I guess it is the shear strength that they want, and not the elongation, as the aluminum would certainly give way before the bolt. Was advised to us high-strength Locktite to keep them from backing out. That is why I wanted backup nuts. (they were out of stock)
 
TRF often has them on sale for $.40 each instead of $1. A little bit cheaper anyway.
 
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