Does anyone know what these are called?

[bigfella]

Looking to get some of these to secure adjustable antenna elements (rather than drilling through the element itself). I cannot source them anywhere, but that might be due to not knowing what they are actually called!

102_1195 (Small).jpg

Thanks for any assistance.

[ClubbaUK]

It's a D clamp of sorts, nearest I could find is here
http://dis-connectors.com/unex-clips

[bigfella]

Thanks, yes I am not sure what it is classed as...