Preload torque for Ultra Corrosion-Resistant Coated fasteners
Preload torque for Ultra Corrosion-Resistant Coated fasteners
(OP)
Every preload torque formula has correction factors for nonplated, black finish, Zn plating, Cd plating, lubricated, etc fasteners.
What is the correction factor for Ultra Corrosion-Resistant Coated fasteners? Which of the above is it most similar to in terms of friction properties.
Thanks.
What is the correction factor for Ultra Corrosion-Resistant Coated fasteners? Which of the above is it most similar to in terms of friction properties.
Thanks.





RE: Preload torque for Ultra Corrosion-Resistant Coated fasteners
RE: Preload torque for Ultra Corrosion-Resistant Coated fasteners
And what do you mean ultra corrosion resistant coated fastener? Is it an exotic stainless steel that has some coating? Is it a corrodable steel that has a resitant coating? I really don't understand the question.
What is the material and its strength? Application is important too, is it a highly stressed F1 racing engine con rod bolt that depends on a good preload to keep it from loosening or does it just hold a cover plate on sewer pipe?
RE: Preload torque for Ultra Corrosion-Resistant Coated fasteners
Hi TeejT
Look at these sites for torque values for stainless bolts, however the last reference go to page 18 for torque's and page 32 for friction factors (click on making the page full screen).
http://www.anzor.co.nz/?t=66
htt
http://fliiby.com/file/831820/b1cefuljq1.html
desertfox