Fastener preload and tightening torque are critical factors to guarantee stable connection performance of bolts, screws and studs. Improper torque setting may cause loose joints, thread slipping or bolt fracture under working load.
Preload is the tensile force applied to a fastener when it is tightened. It presses the connected components together, prevents separation under vibration, shear force or thermal expansion. For most structural fasteners, appropriate preload can greatly extend service life.
Tightening torque refers to the rotational force used to turn nuts or screw heads. It is affected by many variables:
If you have inquiries about torque requirement for your fastener project, feel free to contact our technical team for customized suggestions.
Fastener preload and tightening torque are critical factors to guarantee stable connection performance of bolts, screws and studs. Improper torque setting may cause loose joints, thread slipping or bolt fracture under working load.
Preload is the tensile force applied to a fastener when it is tightened. It presses the connected components together, prevents separation under vibration, shear force or thermal expansion. For most structural fasteners, appropriate preload can greatly extend service life.
Tightening torque refers to the rotational force used to turn nuts or screw heads. It is affected by many variables:
If you have inquiries about torque requirement for your fastener project, feel free to contact our technical team for customized suggestions.
