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Old 05-14-2011, 09:53 AM   #1
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I Joist hanger fasteners


I have to replace a damaged 6" joist header and maybe the joist hangers

Because of a confined crawl space for swinging a hammer in that area, I was going to use screws instead of nails to fasten the new joist hangers

What type or grade of screws would you recommend ?

Is it OK to enlarge the hanger holes to accept a larger screw ?

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Old 05-14-2011, 10:32 AM   #2
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I Joist hanger fasteners


Rent or buy a palm nailer.

There are no non-engineered alternatives to properly sized nails in your application. Enlarging the holes is not allowed

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Old 05-14-2011, 01:18 PM   #3
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I Joist hanger fasteners


I understand integrity but these are only 6" floor joists to re-attach, in a home built in 1952. Room size is 10' X 12'.

I would follow procedure if I was installing a new floor system with 9 1/2 " or larger joists and hangers
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Old 05-14-2011, 01:56 PM   #4
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I Joist hanger fasteners


Why bother asking the question then? All you want is justification
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Old 05-14-2011, 04:29 PM   #5
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I Joist hanger fasteners


Simpson sells a line of structural screws which are specifically allowed as an alternative to nails on some of their brackets. Download the Simpson catalog, and see if there is a joist hanger that will allow structural screws as an alternative to the standard 10d nails. Else get a palm nailer as previously described.
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Old 05-14-2011, 10:25 PM   #6
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I Joist hanger fasteners


exterior 2 inch screws are fine. Screw in fact are stringer than nails.
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Old 05-14-2011, 11:19 PM   #7
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I Joist hanger fasteners


Quote:
Originally Posted by Anti-wingnut View Post
Why bother asking the question then? All you want is justification
He's asking the question because he's hoping that someone will give him a solution to his situation, kinda like one poster who mentioned the Simpson screws that are intended for hangars, instead of (erroneously) telling hem that nails are the only solution.
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Old 05-14-2011, 11:25 PM   #8
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I Joist hanger fasteners


Quote:
Originally Posted by A Squared View Post
He's asking the question because he's hoping that someone will give him a solution to his situation
Like this hogwash?

Quote:
Originally Posted by bluebird5 View Post
exterior 2 inch screws are fine. Screw in fact are stringer than nails.
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Old 05-15-2011, 08:16 AM   #9
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I Joist hanger fasteners


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Originally Posted by Anti-wingnut View Post
Like this hogwash?
Yeah, that answer isn't accurate either. That's the trouble with forums like this. You ask a question, and for every correct answer you get, you get several like yours and mr "any screw is good" which are incorrect. You gotta separate the wheat from the chaff.
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Old 05-15-2011, 08:34 AM   #10
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I Joist hanger fasteners


I am aware of the Simpson products, before I even did my intial respomse, I searched looked for an application. This was difficult given that the OP wanted to attach either a 6" TJI to a header, or 2 X 6 sawn lumber to a TJI. That is why I told him to use nails.
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Old 05-15-2011, 12:26 PM   #11
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I Joist hanger fasteners



Last edited by bluebird5; 05-15-2011 at 12:49 PM.
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Old 05-18-2011, 08:26 AM   #12
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I Joist hanger fasteners


Quote:
Originally Posted by bluebird5 View Post
exterior 2 inch screws are fine. Screw in fact are stringer than nails.
Absolutely incorrect. Screws are nowhere near as strong as nails in shear, which is what they're resisting in a hanger. There is no application for deck/exterior screws (or similar) in the installation of joist hangers, period. The only screws that are acceptable for use are the SD/SDS-types that Daniel mentioned, and even they are normally only specified for use in heavier beam hangers.

The advice to use nails is good solid advice.
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Old 05-18-2011, 01:58 PM   #13
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I Joist hanger fasteners


I'm thinking the OP went ahead and used screws anyway.

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