Required Thread Engagement for Bolt Tensile Strength

[P1ENG]

Is anyone aware of texts that will allow me to determine the necessary thread engagement to achieve the AISC tensile strength of a bolt/threaded rod?

I have a 3/8 HRS plate being bolted to a tapped 3/4" HRS plate with 3/8" bolts. The client will most likely want stainless bolts, as I am sure that could affect the responses. I know I can easily achieve a nuts depth or (1) bolt diameter engagement, but this connection made me wonder if there was something out there that gave a threaded connection strength based on number of threads engaged.

TIA,
Juston

Juston Fluckey, E.I.
Engineering Consultant

 

[SnTMan]

Discussed numerous times. Tried a search?

Regards,

Mike

 

[P1ENG]

I have, but after the third page of search results, I decided to start a new thread. Perhaps you could post a link to one of these numerous discussions?

Juston Fluckey, E.I.
Engineering Consultant

 

[desertfox]

http://www.roymech.co.uk/Useful_Tables/Screws/Thread_Calcs.html

desertfox

 

[SnTMan]

thread404-300941

 

[P1ENG]

Thank you both. The link provide by desertfox is probably more applicable to my application since my threaded plate is probably weaker than my bolt material. I will find out for sure when the client lets me know what type of bolt they want to use.

Juston Fluckey, E.I.
Engineering Consultant

 

[ColonelSanders83]

Use the calculation for thread engagement from ASME D1.1.

A question properly stated is a problem half solved.

Always remember, free advice is worth exactly what you pay for it!

http://www.ap-dynamics.ab.ca/

 

[TVP]

Here are some previous posts related to thread engagement, thread stripping, etc:

http://www.eng-tips.com/viewthread.cfm?qid=35222

http://www.eng-tips.com/viewthread.cfm?qid=32938

http://www.eng-tips.com/viewthread.cfm?qid=174165