Register to reply

Bolt tightening method

by wahyudi.jr
Tags: bolt, method, tightening
Share this thread:
Jul6-10, 05:43 AM
P: 10
dear all,

in object fasteners we usually use one of the three tightening method :

1. torque method
2. rotation angle method
3. torque gradient method or yield point method

my ask is :

1. "what's the meaning of each fasteners tightening method above?"
2. what's the difference of each fasteners tightening method above?

note : especially for number 3, please give me a detailed explanation....(thanks before)

Phys.Org News Partner Science news on
Law changed to allow 'unlocking' cellphones
Microsoft sues Samsung alleging contract breach
Best evidence yet for coronal heating theory detected by NASA sounding rocket
Ranger Mike
Jul6-10, 06:13 AM
Sci Advisor
PF Gold
P: 1,457
not too sure on the gradiant method
torque method uses a torque wrench to tighten to specific torque
rotational method i assume means you take up all thread slack and use a wrench to rotate the fastener so many degrees until you make spec
i do know there is a method where as you tighten the bolt and measure it for stretch length.

Register to reply

Related Discussions
Converting torque applied to a bolt into the linear force exerted by the bolt Mechanical Engineering 8
Tightening torque Mechanical Engineering 0
Anyone determine what the definition/properties of this bolt Materials & Chemical Engineering 5
Tightening your belt General Discussion 34
Bolt material Materials & Chemical Engineering 18