Some more online info from BoltScience.com:
Information related to Bolted Joint Technology http://www.boltscience.com/pages/info.htm
A Tutorial on the Basics of Bolted Joints http://www.boltscience.com/pages/basics1.htm
Information on 'Short Bolting'
http://www.boltscience.com/pages/shortbolting.htm
> B31.3 (asme not astm) says
> "... if the lack of full engagement is not more than one
thread." Note the
> word "full" and then get a sample of a stud bolt and nut. Take a
closer look
> at the first few pitches of the thread/nut and what do you
notice. Right.
> Its only partially formed because of the chamfer, etc.
>
> It has to "stick-out" (in the words of Christopher) a min. of
one thread
> just to meet the lack of one full thread engagement. But why
look at the
> last sentence when its just easy to meet the first sentence -
bolt should
> extend completely through their nuts. By so doing, you at least
avoid thread
> stripping(says Bill Eccles of boltscience.com).
>
> -----Original Message-----
> From: m.apte@ticb.com [mailto:m.apte@ticb.com]
> Sent: 19 March, 2002 5:32 PM
> To: PipingDesign@yahoogroups.com
> Subject: RE: [PipingDesign] Bolt Thread Engagement
>
>
> The ASTM B 31.3 states that the bolting is acceptable even if
the amount of
> dis engagement is upto 1 thread.
> i.e. the bolt can be inside the nut by not more than one thread.
> it means even if it does not come out of nut it is acceptable
( though not
> prefered.)
Received on Thu Mar 21 22:58:00 2002
This archive was generated by hypermail 2.1.8 : Mon Oct 27 2008 - 20:23:56 EDT