New OEM genuine Nissan connecting rod bolt with nut for "late" engines. This rod bolt will fit Datsun 240Z, 260, 280Z and 280ZX 1972-1983. This is the larger 9mm bolt, where the early 240Z had 8mm rod bolts.
The factory service manual recommended torque for this bolt is:
8mm= 20-24 lb ft
9mm= 33-40 lb ft