I'm pretty sure it's for a cycle.

Locknut to locknut is 120mm.

The axle is 10mm, so it looks like it's a single speed or fixed gear axle ?

Unless it's for a BMX ?

It's too wide to be a front afaik.

Here's some more pics:

Axle 02..jpg

Axle 05..jpg

Axle 04..jpg

Axle 03..jpg

Axle 01..jpg