shock absorber nuts

[MIKE550/4]

having a problem getting correct ones anyone clarify to me exactly what i need

did not think it would be this difficult to get a couple of dome nuts

what exactly is the pitch? is it gap between thread ?

anyone recommend what ones i need , or have link to where i can get ones that fit , or better still sell me a couple

... Link to what i mean

http://www.stagonset.co.uk/fasteners?cart_id=1882823_27134&prm_grp=A2_Nut_M12&summit=M12|Nuts

[Bryanj]

"Pitch" of a thread is the distance between two adjacent "peaks" and the easiest way to determine is with screw thread gauges which you ought to be able to buy from the bolt supplier