Pull out strength of studs threaded into aluminum
Pull out strength of studs threaded into aluminum
(OP)
I am looking for tables or formulas for pull out strength of bolts or studs threaded into aluminum. In particular, I am threading an M12 X 1.75 forged stainless steel (alloy 316) eyebolt into 6061-T6511 aluminum or 7075-T651. The thread depth is 20.5mm.
The eyebolt in question is a shoulder eyebolt with a working load of 3.4 kN. I am concerned about straight pull only. I want to ensure that the thread bearing capacity matches the permissible working load when threaded into aluminum.
Abelgus
The eyebolt in question is a shoulder eyebolt with a working load of 3.4 kN. I am concerned about straight pull only. I want to ensure that the thread bearing capacity matches the permissible working load when threaded into aluminum.
Abelgus






RE: Pull out strength of studs threaded into aluminum
RE: Pull out strength of studs threaded into aluminum
RE: Pull out strength of studs threaded into aluminum
RE: Pull out strength of studs threaded into aluminum
RE: Pull out strength of studs threaded into aluminum
Is threr a way to access this table via the internet?
RE: Pull out strength of studs threaded into aluminum
Is there any way to access this table via the internet.
Thanks
ABELGUS
RE: Pull out strength of studs threaded into aluminum
Here is a link to KEENSERTS links to web sites:
1. Advantages of using the inserts:
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2. KEENSERTS web site
http://www.keensert.com/
Good luck
Regards,
Lutfi
RE: Pull out strength of studs threaded into aluminum
The threaded inserts are a good idea for a number of reasons. The step up in diameter increases strength (tho I am OK there). The other good thing is that the insert can be backed in and out slightly to allow the shoulder eyebolt to be in the correct orientation - this is easier than trying to start the tap in the exact orientation, or shaving material of the end of the bar until the eyebolt sits right. After it is correctly positioned the bar will be cross drilled for set screws.
The dissimilar metals is not really that mush of an issue between aluminum and stainless steel - particularly when Loctite is being used. Also the anodizing helps.
Thanks
RE: Pull out strength of studs threaded into aluminum
By eyeball, the thread engagement seems a little short for that loading condition.
Mike Halloran
Pembroke Pines, FL, USA
RE: Pull out strength of studs threaded into aluminum
http://www.reliasoft.org/mil_std/mil_hdbk_5j.pdf
check the transverse loads on the lug; the loads don't look like trouble, but it's nice to see a calc (to show things that were considered).
good luck