Anybody what what these are and what they’re used for?
Eyeballs for metal art
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Look like the antithesis of flange nuts. I would guess they are designed to be used in a running channel to allow for adjustment, while the hex allows for bling tightening.
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My guess is the nut is designed to have a low profile on the surface while part of the shoulder/flange part sits in a hole or counter-bore holding it place. Could be a nut that backs up against the surface to lock threaded adjustment fastener.
Just guesses, though. But pretty much what Walter thinks.
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Is the minor diameter knurled on the outside?
Looking closer I noticed the head has a countersink. I reinforces the adjustment screw idea. Adjustment goes through center then tightened.
Under further review I agree with Walter. My theory was shot out the window by looking to see that there was a channel cut in the minor. I saw this when I looked closer at the picture.
