Reply With QuoteDo you have a specification? Industry standard ?
Hello,
I need to model a number of rods and fasteners using coil threads. Where can I find the specifications for these?
I did a search and could not find anything relevant.
Yes, I'm a newbie...
Thanks.
Do you have a specification? Industry standard ?
Tell me and I forget. Teach me and I remember. Involve me and I learn.
Find a copy of a book titled: "Machinery's Handbook" published by Industrial Press. The engineer guiding your modeling efforts should have specified the thread and should be able to help you find a copy of the book.
If there is no engineer on the project google "Kansas City skywalk" to see what can go wrong with threaded rods.
One of the threads is for a 3/4-4.5 bolt and nut. Thanks for the tip on the book. I was unaware it covered coil threads.
I am aware of the sidewalk failure. Very sad. Many failures by many hands...
Anyway, this is for concrete formwork.
Thank you for the help!
I have a copy of the 22nd edition of the handbook, and I was unable to locate the coil thread profile data. Can someone verify that the recent edition contains this information?
Look for 'Unified Screw Threads".
I'm not aware of any standard for so-called coil threads. When you say "coil threads", do you mean as in Helicoil type thread inserts? You can find their information on their website.
These are not HeliCoil inserts. There is nothing in the handbook specifying this thread profile under the UNC thread section, at least in the edition I have. Some examples:
http://www.buildsite.com/pdf/daytonr...ata-B35024.pdf
http://www.daytonsuperior.com/docs/default-source/tech-data-sheets/b14coilbolts_td.pdf?sfvrsn=10
Thanks.
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