In the absence of any specific standard and informaton, we developed the attached table of information regarding torque values for small fastner.
Attachment:
Comment:
Upon reviewing the attached you might agree with what our grandfathers told us was a good rule of thumb for tightening...
We are attempting to get a copy of either of the following two(2)documents or a copy of both.
1st - Mil-I-8846, Rev. D entitled: "Inserts, Screw-Thread, Helical Coil" which was cancelled by the U.S. Government on 30 June 1998. and a copy of
2nd - NASM8846, entitled: "Inserts...
Dear Mr. Paskenell:
I'm so old all my teeth have all fell out! There is no need for you to worry about "... getting teethmarks ...."
As far as I'm concerned, you can "... stick your nose in ..." anytime.
The hotlink you provided in your last reply
(i.e...
Dear Mr. Paskenell( Materials)
Thank you for taking the time to review and comment on our prior comments.
You are probably correct about Grade 5 or 5.1!
Mil-Hdbk-60 and most engineering handbooks only give specifics on fastner larger than 1/4-20, etc. and fail to adequately address the...
To : diamondjim
Thanks for your input, the Tensile strength of 6061-T6 aluminum is ~ 42,000psi and yield is about ~ 37,000 psi.
Yes, we generally do use Grade 5 Stainless Steel fastners which have a proof load(s/tensile stregnth of 750 lbs/1,100 lbs for 6-32 and 1700 lbs/2,400 lbs for 10-32...
Can someone direct me to reference table which list the recommended torque values for small, stainless steel installation or mounting hardware when mounting 6061 Aluminum Electronic part(s) into Military Electronic Systems. Application environments can range from Ground Fixed, Ground Mobile...
Mil-Hdbk-60 dated 12 March 1990 which replaced Appendix A12 of Fed-Std -H28; stipulates torque values from 0.190 upto 1.5 inch diameter fastners or hardware.
However, I'm still in need of recommended torque values for hardware fasteners in the smaller size(s) of 0-80, 2-56, 4-40, 6-32 and 8-32...
Can someone direct me to reference table which list the recommended torque values for small, stainless steel installation or mounting hardware when mounting 6061 Aluminum Electronic part(s) into Military Electronic Systems. Application environments can range from Ground Fixed, Ground Mobile...
