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Re: Lateral Load on Wood Screws

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Daryl,

Be aware also that the screws will likely be loading (toward) the end of 
the 2x6 joist. That would be in the direction of anybody pushing on the 
guardrail at +36"...

David Topete

On Nov 5, 2012, at 2:25 PM, Drew Morris <dmorris(--nospam--at)bbfm.com> wrote:

> Don't know if this will help, but the AWC (American Wood Council) has a 
> connection design calculator based on the NDS (National Design Standard). 
> <http://www.awc.org/calculators/connections/ccstyle.asp>
> 
> On 11/5/2012 9:10 AM, h.d.richardson wrote:
>> Fellow engineers,
>> I have a client who wants to connect 2x4 guardrail posts to 2x6
>> platform joists using HSS 4x2 as a connector medium.  He will cut off 
>> part of one 2" face of the HSS, slip it onto the end of the 2x6 and 
>> connect it using wood screws from each side then just drop the 2x4 post 
>> inside of the HSS.  Unfortunately, the only screw data I have is for 
>> 1/4" lag screws. Logic suggests that screws should have similar lateral 
>> capacity to nails of the same diameter but require less penetration than 
>> the nails. If so, a pattern of #12 or #14 screws by 1.75" long from each 
>> side should work well.  Does anyone have information regarding the use 
>> of screws for such an application? Thanks in advance for anything you 
>> can provide. Regards, H. Daryl Richardson 
> 
> --
> *Drew Morris, PE*| /Project Engineer/

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