A simple sprung bolt for light use.
The spring sections are 0.6mm

Hope someone finds it handy.
Cheers

Update:

After using it for a while I have made some adjustments.
I found that the internal slope needed a little more clearance as it started to clamp the bolt if I tightened it down hard.

Also I changed the shape of the tip of the bolt slightly so it's more forgiving if things aren't 100% aligned when closing.

The bolt and staple are now separate files and there are two extra variations on the bolt.

I for the application i am using it for i do not require the staple and i needed a thin bolt but others may not so there is a version with a fatter bolt.

Cheers

I sliced it with 13.06.3 Cura with 1.1mm shell and it worked well
It did not slice well with the old 13.04 SF based Cura