ARP Head Nut
 

Hi all i have a 11mm arp head stud kit but am missing one nut, i thought i had sourced one but not recieved it so am asking on here if anyone can help me out if they have one kicking about.
Im also after what torque i should tighten these to its a 2.5 with version 4 sti heads on.
thanks all

Dasco