P3 spring shackle nuts

[byb]

Having lost during the nuts to the shackle bolts during strip down I need to identify the thread before sourcing a new set. The parts manual refers to the bolts as 9/16 inch but does not state what the thread type is. Can anyone help with this info please ?

[GOY189]

This thread would usually be BSF. If you check the bolts with a thread gauge, 9/16 BSF has 16 teeth per inch according to tables. In the day, the nuts would have been all metal. Modern self locking nuts have nylon inserts.

Hope this helps
Mike

[byb]

Many thanks that’s a great help. Namric can supply these with, (as you point out), the modern equivalent with a nylon insert. No doubt the originals will surface at some point but I need to move on with the reassembly so faced with buying new.

Thanks again and my own thoughts confirmed re BSF.