Can you determine the length of a bolt with a callout 5/8-11 UNC 2A ?
 
im used to determine bolt call outs in metric, im getting confused on using American Standard Call out on threads. Help please! Thanks!

Hello, the bolt that you are talking with the "callout" 5/8-11 UNC 2A doesn't include the length.
 
5/8 means the diameter of 5/8 x 25.4 = 15.875 mm
11 means 11 threads per inch # 25.4/11 = 2.3090909... mm pitch
UN means UNified ( american standard )
C means Coarse ( standard big pitch versus Fine pitch )
2A means the tolerance of the fabrication ( standard )
 
The length of a 5/8 screw ( bolt = screw + nut ) is between 1" ( 25.4 mm ) and 6" ( 152.4 mm ) including :
1" , 1"-1/8 , 1"-1/4 , 1"-3/8 , 1"-1/2 , 1"-3/4 , 2" , 2"-1/4 , 2"-1/2 , 2"-3/4 , 3" , 3"-1/4 , 3"-1/2 , 3"-3/4 , 4" , 4"-1/2 , 5" , 5"-1/2 , 6"
 
You should also specify the material for example : Steel - Grade 5
You should also specify the "state fo delivery" ( protection )
 
Ask for more; you should read more informations about Unified Thred Standard on WIKIPEDIA or on school books if available for you.
 
I have an old example in PDF form of "CLARK Equipment" bolts standards that I can send to you on request.
 
 

thank you very much dude,yes please can you send me the sample ur talking about? ( griartemichael@yahoo.com.ph ) 


 
quick question, can i specify the length of the thread in American Standard? for example:
5/8-11 UNC 2A 6" Length
What would be the proper representation for it if i want to include the length?
 
Thanks!
Thanks!
Thanks! Really helpful!griartejm2012-01-03 01:42:29

This is what really is best about this particular discussion board... what one might call the "Value-Added Posts".  Folks here don't just answer the immediate question at hand, they anticipate and provide that extra measure of useful information.Great answer, Philippe!  Dave

Dave, thanks a lot !!!
Your answer is too good for me comming from THE engineer of Hawaii ( just this makes me dreamming !! )
I found my contribution to this exellent forum normal as I'm already learning a lot every day ( and I'm using AutoCAD every day at work since AutoCAD R13 - 1995 ).
Without answering at every discussion I read all of them and learn a lot.