I know they are some sort of nail, but I had one in my tire and at the store found a near identical one and now I'm beginning to think my tire guy is playing shell games. I mean, what are the odds?
this post was submitted on 12 Apr 2025
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What is this thing?
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I think they are self drilling screws.
And the top half would break off if it was inserted into a tyre (accidentally or otherwise) and then driven on. Normally that half would be left in the work piece if it snapped from over torque.
The only actually correct answer here. These are not "self tapping" screws. These are indeed the snapped off points of self drilling sheet metal screws, easily identified by the... drill point... built into them.