its an m8 stud as uses a 13mm headed nut stud should be screwed into the block and should be err5691 it also holds one end of the p gasket
That's the puppy!!
http://www.paddockspares.com/err5691-stud.html
all of £1.82 too !!!
Welcome To LandyZone, the Land Rover Forums!
Here at LandyZone we have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.
Registering is free and easy just click here, we hope to see you on the forums soon!