WARNING: This page is about a different car, the 2011 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
Measure the outer diameter (d) at position shown.
If the reduction appears in a position other than (d), regard it as (d).
Limit : 7.75 mm (0.3051 in)
When (d) exceeds the limit (when it becomes thinner), replace connecting rod bolt with new one.
Fig 1: Identifying Connecting Rod Bolt Outer Diameter