Mislaid the nut that secures my vhf aerial.

[ferrispeterchris]

The threaded bit that goes through the bracket (the co-ax goes through the side not the bottom) is about 15mm across with a fine thread. Where would I begin looking for a replacement nut?

 

[VicS]

The threaded bit that goes through the bracket (the co-ax goes through the side not the bottom) is about 15mm across with a fine thread. Where would I begin looking for a replacement nut?

You really need to ID the thread.. Measure diameter and pitch in mm if if looks like being a metric thread or in tpi if it looks like being UNF.

Other wise it's trial and error until you find the correct one.