Paul,
I'm not certain about the reference to pin and buckle clips either, but I think one is probably similar to our British clips.
I meant to post these pics some time back, but due to a computer problem I couldn't retrieve them from the hard drive.
Anyhow,
Our pin-clips come in a box like this one:
Inside the box, we have these:
They have small nails in the clips and are nailed to timber joists, like so:
Then the cable is run across the clip, which is then closed around the cable sheath:
{Sorry, I could only find some lengths of 6mm2 conduit wire in my garage.}
Buckle clips are the same thing, but have no nails and are used for adding to existing runs of cables.
Both types come in 38,50,64 and 76mm sizes.