Not when you really think about it. Think about two plates being bolted
together. You want the strongest part of the bolt, the unthreaded part,
to carry the load. If part of the bolt that is threaded in in the hole
then the load capacity is reduced because of the root diameter of the
bolt: ie smaller cross section for either shear or tension.
mayf
dave@munroe.ca wrote:
>Hey Mayf,
>
>That is, interestingly, counter-intuitive.
>
>Dave
>
>------Original Message------
>From: drmayf
>Sender: tigers-bounces@autox.team.net
>To: mcdangerous@verizon.net
>Cc: Theo.Smit@dynastream.com
>Cc: tigers@autox.team.net
>ReplyTo: drmayf@mayfco.com
>Subject: Re: [Tigers] Crossmember Installation Headache: Advice NeededPlease!
>Sent: 13 Jul 2010 14:04
>
>Actually, the grip length is the amount of the bolt that is unthreaded,
>i.e., the shank of the bolt.
>
>mayf
>mcdangerous@verizon.net wrote:
>
>
>
>>Roger that! Thanks. M
>>
>>Jul 13, 2010 09:52:38 AM, Theo.Smit@dynastream.com wrote:
>>
>>Those bolts are not easily found because of their length and the grip length
>(the amount of the bolt that is threaded). Also, they're British fine thread
>which is almost but not quite the same as SAE: the threads are angled at 55
>degrees and the roots and tips of the threads are rounded rather than sharp.
>So your (SAE) die will change the thread shape somewhat - the less that you
>thread on those bolts with the die, the better.
>>
>>Good luck,
>>Theo
>>
>>
>_
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