TMS TC Bolts are manufactured with a high level of quality control which ensure
constant mechanical properties, especially the twisting shear strength of
the pin tail. Therefore the axial tightening force for a group of bolts is
Torque Coefficient at Different Temperature
TMS nuts are manufactured with special surface treatment which minimize the
effect of temperature variation on the axial tightening force
tension is calculated using the formula below.
N : Bolt axial force (kg)
T : Torque value at shear off of pin tail (kg.m)
K : Torque coefficient
d : Bolt nominal diameter (m)
and Convenient Use of Bolts
No special skill is required in using TMS TC Bolts, Fastening finish can be
identified visually by the breakage of pin tail. Special control or
inspection is also unnecessary. The breakage of pin tail has already
ensured a stable fastening tension.