Won't a be welch but it is a M8-1.00 (French) screw or at least is the measurement of Nikki Fuel Solenoid PN 699915 here. Shorten screw as needed and use sealing washer.

This screw size may be more readily available in your area than mine it seems the local hardware stores only carries SAE screws even in a space related city of Huntsville, AL, USA.

Last edited by AVB; 05/02/17 09:37 PM.