Nissan Micra Standard Bolt Tightening Torque Chart - 4T 7T 9T Grades (GI-17)

This document is page GI-17 from a Nissan factory service manual General Information section, titled "Tightening Torque of Standard Bolts." It provides a comprehensive reference table of standard tightening torque values for metric bolts and nuts across three strength grades: 4T, 7T, and 9T. For each grade, the table lists bolt sizes M6 through M14, their nominal diameters (6.0 to 14.0 mm), thread pitches (1.0 to 1.75 mm), and the corresponding torque ranges expressed in three units: Newton-metres (N·m), kilogram-metres (kg-m), and foot-pounds (ft-lb). Values range from 3-4 N·m (2.2-2.9 ft-lb) for a 4T M6 bolt up to 109-147 N·m (80-108 ft-lb) for a 9T M14 bolt. Footnotes clarify that special parts are excluded from this standard, and that the grades correspond to marks embossed on bolt heads (4, 7, or 9). A small diagram explains bolt designation nomenclature: "M" indicates metric screw threads and the number indicates the nominal diameter of the bolt threads in millimetres. A reader can use this page to determine correct torque values for any standard fastener on the vehicle when a specific torque is not otherwise specified.