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RE: Ring Shank Nails

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My thoughts exactly.  Wanted to get confirmation from others so I could 
instruct the client to not use them.



-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Chuck Utzman Sent: April-05-15 10:41 AM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Ring Shank Nails

Hi Thor-
I'd say it is very bad idea. It isn't hard to keep 1/2" ply from buckling 
using smooth shank nails. Consequently, the ring shank would provide zero 
benefit. OTOH the reduced shank would significantly reduce the nails' bending 
 strength and increase the walls' deflection. I also think the ring shank 
is hardened by its production method & has less fatigue strength--maybe 
drastically less. Don't go there! Chuck Utzman, P.E.

On 4/5/2015 8:47 AM, Thor Tandy wrote:
> I was asked recently if ring shank nails are usable in shear wall design.
> They have a smaller shank thank smooth but the thread is said to
> provide better withdrawal capacity .?
> Any comment?  If they are usable what equivalent shank diameter would
> one use to compare the performance?
> Thanks
> Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC Victoria, BC

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