New NGK spark plug for 1970-74 Datsun 240Z and 260Z, NGK # BPR6ES. It is always a good idea to use a thread lube or anti seize on the threads. Factory recommended gap on these spark plugs is .030-.035" (.8 to .9mm). The factory service manual torque spec for the spark plug is 11-15 lb ft.
Sold as singles.