These bolts secure the engine mount brackets to the engine block on each side of the engine. This set of 4 covers both sides since 2 bolts are required per side. I’ve posted a diagram showing exactly where these bolts go. These are rare NOS (new old stock) bolts and are ideal for a proper restoration; very few bolts are left with the original strength number markings on the bolt heads.
Applicable Models: Datsun 240z, 260z, 280z (1970-1978)