Thanks. The reason I asked cause I looked at B&Q and Screwfix but couldn't see either of them on their sites. B&Q had one but it said interior only which was a little confusing.
All I could find at Screwfix was these
http://www.screwfix.com/app/sfd/cat/pro ... 9&ts=04339. But don't need the metal bits just the bolts, will drop in to local screwfix on way to work tommorow morning.
If you wondered why, I'm replacing the old aerial with a
digital freeview one. Using same pole just new aerial. Had to grind these off to get to it...