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Posted by RO on July 26, 2008, 11:03 pm
For years I've wondered why we are supposed to use teco nails for joist
hangers.
Wouldn't a screw do a better job on holding things together in an earthquake
or what ever?
Thanks,
--
Robert Olin
Bob's Water & Septic LLC
jolin@whidbey.net
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Posted by Bobk207 on July 27, 2008, 1:50 am
show/hide quoted text
> For years I've wondered why we are supposed to use teco nails for joist
> hangers.
> Wouldn't a screw do a better job on holding things together in an earthqu=
ake
show/hide quoted text
> or what ever?
> Thanks,
> RO
> --
> Robert Olin
> Bob's Water & Septic LLC
> jo...@whidbey.net
Yes, some screws would probably be better than hanger nails but hanger
nails are bettter than a lot of different types of screws. If screws
were allowed ......then someone, sometime, would be "out of the
correct screws" & then drywall screws (or whatever they had in their
pouch, truck or local hardware store) would get used.
Drywall screws would be the worst of the worst but many screws exhibit
brittle behavior. Nailed connections are know quantities, nearly
always exhibit ductile failure.
Drywall screws are for hanging drywall but I see them used for just
about any application imaginable.
So I guess the hanger mfrs just stick with nails " 'cuz that's the way
we've always done it". Plus nails install faster?
cheers
Bob
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Posted by RO on July 27, 2008, 2:06 am
But, why are teco nail so short? You would think a 16d would hold a lot
better.
--
Robert Olin
Bob's Water & Septic LLC
jolin@whidbey.net
show/hide quoted text
> For years I've wondered why we are supposed to use teco nails for joist
> hangers.
> Wouldn't a screw do a better job on holding things together in an
> earthquake
> or what ever?
> Thanks,
> RO
> --
> Robert Olin
> Bob's Water & Septic LLC
> jo...@whidbey.net
Yes, some screws would probably be better than hanger nails but hanger
nails are bettter than a lot of different types of screws. If screws
were allowed ......then someone, sometime, would be "out of the
correct screws" & then drywall screws (or whatever they had in their
pouch, truck or local hardware store) would get used.
Drywall screws would be the worst of the worst but many screws exhibit
brittle behavior. Nailed connections are know quantities, nearly
always exhibit ductile failure.
Drywall screws are for hanging drywall but I see them used for just
about any application imaginable.
So I guess the hanger mfrs just stick with nails " 'cuz that's the way
we've always done it". Plus nails install faster?
cheers
Bob
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Posted by jloomis on July 27, 2008, 9:40 am
The wood can split. Many of the applications may call for teco or 16s
common or 10s common. Look up the nailing in the Simpson Strong Tie Book,
You may be surprised to find out that the nail you are using is not the nail
that is recommended.
Anyway, some joist hangers and H-1 or others use 16s or 10s common.
Strapping takes some differing nails.....
Again, it is the "shear" of the nail not the holding.........
jloomis
show/hide quoted text
> But, why are teco nail so short? You would think a 16d would hold a lot
> better.
> RO
> --
> Robert Olin
> Bob's Water & Septic LLC
> jolin@whidbey.net
>> For years I've wondered why we are supposed to use teco nails for joist
>> hangers.
>> Wouldn't a screw do a better job on holding things together in an
>> earthquake
>> or what ever?
>> Thanks,
>> RO
>> --
>> Robert Olin
>> Bob's Water & Septic LLC
>> jo...@whidbey.net
> Yes, some screws would probably be better than hanger nails but hanger
> nails are bettter than a lot of different types of screws. If screws
> were allowed ......then someone, sometime, would be "out of the
> correct screws" & then drywall screws (or whatever they had in their
> pouch, truck or local hardware store) would get used.
> Drywall screws would be the worst of the worst but many screws exhibit
> brittle behavior. Nailed connections are know quantities, nearly
> always exhibit ductile failure.
> Drywall screws are for hanging drywall but I see them used for just
> about any application imaginable.
> So I guess the hanger mfrs just stick with nails " 'cuz that's the way
> we've always done it". Plus nails install faster?
> cheers
> Bob
>
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Posted by Tony Goldenberg on July 27, 2008, 11:38 am
RO wrote:
show/hide quoted text
> But, why are teco nail so short? You would think a 16d would hold a lot
> better.
>
> RO
>
Because the nailed item is less than 1/16" thick for the most part. That
gives you almost 1 1/2" penetration. Much of the hanger,holddown,nail
pattern logic defies common sense. We will see when the BIG ONE comes.
However I do trust the math. Its the nailing patterns I wonder about. tonyg
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> hangers.
> Wouldn't a screw do a better job on holding things together in an earthqu=