Exhaust Manifold Flange to Pipe Stud 240Z 510

New exhaust manifold to exhaust pipe stud. Will fit Datsun 240Z, 1970-73 and 510 1968-73. These are 8mm thread, 40mm overall length.

*Starting around 1974-75 these studs changed to 10mm.  See PT# 800-257.