Fastener Torque, Thread Pitch and Clamping Force Units
Blocks shown as light blue are editable
axial tension Ff = N
Pitch diamter fastener d2 = mm
Pitch diameter bearing surface dn = mm
Half angle of screw thread α = ˚
Lead angle β = ˚
Friction coefficient of thread μ = -
Friction coefficient of bearing portion μn = -
Calculated Results Equation 1
tanβ = ˚
Torque T = N-mm
Torque T = N-m
 
Fastener Axial Force, Thread Pitch and Clamping Force Units
Blocks shown as light blue are editable
Torque T = N-mm
Pitch diamter fastener d2 = mm
Pitch diameter bearing surface dn = mm
Half angle of screw thread α = ˚
Lead angle β = ˚
Friction coefficient of thread μ = -
Friction coefficient of bearing portion μn = -
Calculated Results Equation 2
tanβ = ˚
axial tension Ff = N