How To Determine Nut Strength

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

Nut Type

Fig 1: Nut Standard Chart

G04054487

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HINT:

*: Nut with 1 or more marks on one side surface of the nut.
Use the nut with the same number of the nut strength classification or greater than the bolt strength classification number when tightening parts with a bolt and nut.

Example:

Bolt = 4T
Nut = 4N or more