Bolt Torque & Clamp-Load Calculator
Illustrate T = K × diameter × clamp load with generic tabulated assumptions. Not an approved tightening specification; use the joint/fastener manufacturer’s instructions.
Fastener Specifications
Torque & Clamp Load
Illustrative Torque:
Clamp Load:
Proof Strength:
Tensile Strength:
Thread Pitch:
Method limits
Generic proof-strength and friction-factor tables are not validated for a particular joint or product. Units: MPa × mm² / 1000 = kN; K × diameter in mm × clamp load in kN = N·m; multiply by 0.7375621493 for ft-lb. No joint suitability, safety, lubrication compatibility or tightening sequence is assessed.