Solenoid fastener nut.

[alexblack13]

What's the thread on the fasteners fitted to the solenoid? Is it BA? It aint UNC Thought it is but its not...

Dropped one of the nuts when I was fitting the starter cable and it just plain disappeared! Doh!!

Anyone got a spare they can eerrrr spare? Swop?

Ab.....

[lotusfan]

Alex

I think it may be metric, maybe M8? I have scrap solenoid somewhere, if you want me to try to find it report back.

[alexblack13]

Thanks Mike..

Do that for reference. Everyone will benefit then...

Meanwhile I will check an M8 course thread nut on it..

AND..Big Thanks to Leslie. He has one spare and is sending it to me... Thanks to all who PM'd me.

Alex...

[Elan45]

I would have guessed that they are Whitworth or BSF, w/ 55 degree threads. I was thinking that BA only does not go any larger than 1/4". On smaller threads, I do believe that some BA threads are the same as current ISO threads. Seams like I have some old English electrical fittings which happen to have had their BA fasteners replaced w/ M6 socket head set screws. It was a height issue which caused me to want to replace the original slotted screws w/ socket headed fasteners. I can always check in my Newes Engineers manual.

Roger

[lotusfan]

Roger

You are correct, the thread is 5/16 BSF. I bought a new solenoid recently and the thread is the same - amazing!!

[alexblack13]

Thanks peeps... I have the new nut (thanks leslie) fitted and the engine turns over again. Oil pressure is up and its ready to go.

Many thanks...

Alex.