• Jul 11, 2026 bolt clamping force chart metric ng torque to achieve the desired preload. Usually expressed in Newton-meters (Nm) or kilogram-force meters (kgf·m). 5. Corresponding Clamping Force Measured in Newtons (N) or kilonewtons (kN). The actual preload achieved at specified torque. 6. Lubrication Conditions Lubricated vs. dry thre BY Camille Swift