What is the "official" name of this screw?

[Bob]

The screw's threads match the teeth in a zip-tie (cable-tie). The screw tightens the zip-tie.

[trader_4]

Can't see it, says not authorized without loggin in.

[Bob]

[hubops]

A 3 foot zip tie or a 3 inch zip tie ? ie: give us a hint how big is it ?

not a Blum screw as I first thought ..

John T.

[RonNNN]

It looks like a screw out of a hose clamp.

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[Iggy]

replying to Bob, Iggy wrote: It's a Set Screw or Crown Bolt.

[Bob]

The screw is 1" long and 3/8" in diameter.

[croy]

Looks like a cruciferous recess to me (not slotted).