What kind of screw is this? And what characteristics are relevant when trying to locate a suitable replacement?
It's meant to be paired with a grommet.
What kind of screw is this? It’s meant to be paired with a grommet
screws
Related Solutions
M5 Pan head machine screw.
Edit: M5 screws have a 5mm shaft.
Edit2.1 (my apologies): This is an M5-0.80 screw. 0.8 refers to the thread pitch, which (for metric screws) is measured by dividing 9.6mm by 12 threads, which equals 0.80. The picture above shows a minor optical illusion of 12 threads over 10mm (pitch = 0.8333); but M5-0.85 screws simply don't exist.
My guess is that this is a Clutch type screw. (First row, sixth column)
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Best Answer
This is referred to as a "shoulder screw" because the wide section above the threads stops it from going in any further. They can be used so that soft or brittle materials like plastic of a certain thickness are held in place without being pinched or over-tightened.
I've also seen these used as a type of "standoff" that you could hook a spring or cable onto, but the basic term "shoulder screw" is what will help the most.