The patented Stage 8 locking fastener system boasts a 100% success rate. A locking retainer is held onto the grooved nut by means of a spring clip. The retainer is locked to the nut, and wedges against the manifold making it impossible for it to loosen on its own. Since it uses no adhesives or nylon, they are fully reusable with no thread cleaning. Proper torque readings will be achieved since these fasteners can be oiled. One kit of 17 fasteners will cover the manifold assembly.
Datsun 240Z, 260Z, 280Z, 280ZX
Datsun S30, S130
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983