[SEL] OTnow homebuilding - now nails rulez

[Tim Christoff]

That video really doesn't prove much Al, not trying to pick a fight. 
Sheetrock screws are designed for sheetrock into lumber, thats it.  Using
them for anything else and they can and will shear easily.  When watching
that video, the man hit the construction screw in the threaded area.  Yes
it will shear easily there.  That is why you buy construction screws with a
shank that will allow the threads to completly embed in the receiving
lumber and not between the two peices being joined.  The shank will have
greater shear strength then the threaded part.  Nails are also (most of
them) made of softer metal so they will bend or pull before shearing.  You
can take a ring shank nail of a 60D size, that's a hell of a lot bigger
around than a 16D, and shear it in half with just 2 hits of a 22 oz hammer
if the ring part of the nail is not completly embelded in the lumber.  So
there is a large nail that is no better than a smaller screw when not used
properly.  With the proper screw being used, you can put something together
a lot tighter and stronger than you can using nails but you will also pay
for it in the cost of the screws and the time it takes to insert them.

Tim Christoff
Basehor Kansas


> [Original Message]
> From: Al Harris <al.harris at rustic-engines.com>
> To: The SEL email discussion list <sel at lists.stationary-engine.com>
> Date: 12/19/2008 10:43:23 PM
> Subject: Re: [SEL] OTnow homebuilding - now nails rulez
>
> >
http://www.metacafe.com/watch/967794/shear_strength_of_nails_drywall_screws_
amp_construction_screw/
>
> Cheers,
>
> Al Harris
> Summer Clarence Coast NSW Oz
>
> al.harris at rustic-engines.com
>
>
>
> Tim Christoff wrote:
> > Tim Christoff
> > Basehor Kansas
> >
> >
> >   
> >> [Original Message]
> >> From: Dave Merchant <kosh at ncweb.com>
> >> To: The SEL email discussion list <sel at lists.stationary-engine.com>;
The
> >>     
> > SEL email discussion list <sel at lists.stationary-engine.com>
> >   
> >> Date: 12/19/2008 8:10:07 PM
> >> Subject: Re: [SEL] OT////// AM transmitter - now homebuilding
> >>
> >> New deck screws are coming thru in the US with T25 Torx heads.
> >> Gives a real positive drive, but don't know how they'd be to remove
> >> after a few years exposure.
> >>     
> >
> > They seem to come back out very well as long as the head isn't packed
with
> > dirt.  Pretty pricy though.
> >   
> >> Previously in the US, deck screws used a "combo" head, square drive
> >> superimposed on Phillips. Gave a lot of engagement for the matching
> >> driver, really worked well, but the T25 seems slightly better.
> >>     
> >
> > The square drives are great as long as you use just a square tip, that
> > combo tip is still too much like a phillips bit and will still start
> > stripping them out after the first 100 or so.
> >   
> >> Cement board screws here have square drive, and it's real easy to
> >> strip the square out to round, especially with the super-hard old pine
> >> studs + joists in our old house. Worst is square drive in some
stainless
> >> screws we tried to use. The stainless is too soft, stripped out many
> >>     
> > heads.
> >
> > There is one stainless screw out there (don't know the name) but I never
> > could strip one.  One of my customers had gotten ahold of a 50lb box of
> > them and I never could find them after that.
> >   
> >> Deck screws, at least in the US, have a very special coating, since the
> >> enviro-crazies got the normal green pressure treated timber banned.
> >>     
> >
> > Might want to check out the patten office on that one.  Seems like just
> > when CCA was determined bad for the enviroment, 3M's process patten ran
> > out.  Thats when they came out with ACQ and yes, that stuff will eat
> > through damn near anything.
> >
> >   
> >> The replacement is also green, but is about 4 times more corrosive
> >> to fasteners than the old stuff. (Manufacturer's statement, not mine!)
> >>
> >> We built a scaffold last year from pressure treated + 1/2" chromated
> >>     
> > bolts.
> >   
> >> Had it up for 2 weeks before dismantling it, and the bolts look like 
> >> battery terminals.
> >>     
> >
> > You should see what it does to a triple dip post mount after 2 months.
> >   
> >>> Those screws are also excellent for screwing 4x2 cleats to your
trailer 
> >>> deck to
> >>> help keep engines from moving around.  I like #10 x 3" long.
> >>>
> >>> I just thought, what the hell, lets say something about ENGINES for a
> >>>       
> > change.
> >   
> >>> 8-)))
> >>>
> >>> See ya,  Arnie
> >>>       
> >
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