Robertson Screws? Drywall Screws?

[NW Modeling List]

There are two primary differences between drywall screws and square head
wood screws. The first is that a square head driver is much less likely
to slip and strip the screw head when driving. The second issue is that
drywall screws are not intended for wood to wood application. They are
made of a very strong but brittle material that can snap suddenly under
load. If you've ever done drywall removal, the easiest way to remove the
screws is to hit them sideways with a hammer. They will snap off right
at the face of the stud. Wood screws are much more ductile and are
designed to pull two pieces of wood together. Counterboring and
countersinking are part of the process in hard wood, just as drilling a
clearance hole is used in using metal screws.

 

Danial Fisher

________________________________

From: NW Modeling List [mailto:nw-modeling-list at nwhs.org] 
Sent: Friday, October 29, 2010 6:02 PM
To: nw-modeling-list at nwhs.org
Subject: Re: Robertson Screws? Drywall Screws?

 

Matt, in my experience the square drive bit just simply holds the screw
better so no slipping, stripping or falling off the bit. Sorry I didn't
sign my previous post.
 Doug Langlitz

 

 

 

-----Original Message-----
From: NW Modeling List <nw-modeling-list at nwhs.org>
To: NW Modeling List <nw-modeling-list at nwhs.org>
Sent: Fri, Oct 29, 2010 5:50 am
Subject: Re: Robertson Screws? Drywall Screws?

I actually sent this to the wrong list, but still got fantastic
responses. 




 Thanks Ed and Ed.









To the writer of the below (my apologies, I am unable to address you by
name), 




what made the square drives superior?









Matt Goodman















>






>From: NW Modeling List <nw-modeling-list at nwhs.org>






>To: nw-modeling-list at nwhs.org






>Sent: Thu, October 28, 2010 6:38:45 PM






>Subject: Re: Robertson Screws?  Drywall Screws?






>






>While helping a friend build the benchwork for his Milwaukee layout we

started 





>with Philips head drywall screws then switched about 1/4 of the way

through to 





>Square drive screws. The Square drives were far superior in my opinion.

We also 















>predrilled and countersunk everything. The screws came from a place

called 





>McFeely's that specializes in square drives.






>






>






>






>






>






>






>






>-----Original Message-----






>From: NW Modeling List <nw-modeling-list at nwhs.org>






>To: NW Modeling <nw-modeling-list at nwhs.org>






>Sent: Thu, Oct 28, 2010 3:37 pm






>Subject: RE: Robertson Screws?  Drywall Screws?






>






>






> I've used nothing but drywall screws of varying lengths - mainly 2"

and 2 





>1/2".  Work great, go in easy and a lot cheaper than "normal wood

screws".  




Also 





>






>less apt to strip the head if you have to change something (if?????).






>






>Ed Svitil






>Norfolk & Western Railway






> 






> 






>






>






>






> 






>> Date: Thu, 28 Oct 2010 15:37:38 +0100






>> Subject: Robertson Screws? Drywall Screws?






>> To: nw-modeling-list at nwhs.org






>> From: nw-modeling-list at nwhs.org






>> 






>> The Canadians mentioned these on show 24 <grin>. I was scratching my

head 




until 





>>






>>






>> Pierre volunteered the square drive clarification.






>> 






>> Question: Why these over a Phillips head? Both would seem to offer

the 




benefit 





>






>






>> of self-centering of the driver, and, on the surface at least, the

Phillips 





>> would seem to have an advantage of a longer lever (the squarehead

screws I've 




















>> seen have much shorter bearing surfaces than a Phillips.






>> 






>> What gives?






>> 






>> Another question - why not Drywall screws? They have an aggressive

thread 




with 





>






>






>> a thin shank, so self thread well. My intuition is that they would

also be 




less 





>>






>>






>> likely to strip in soft material due to the deeper threads. I've

typically 




used 





>>






>>






>> normal wood screws with pilot holes, especially in areas with a high

shear 





>>load, 






>>






>> but I have used drywall screws on occasion.






>> 






>> Thanks






>> 






>> Matt Goodman






>> 






>> 






>> 






>> ________________________________________






>> NW-Modeling-List at nwhs.org






>> To change your subscription go to






>> http://list.nwhs.org/mailman/options/nw-modeling-list






>> Browse the NW-Modeling-List archives at






>> http://list.nwhs.org/pipermail/nw-modeling-list/






>






>________________________________________






>NW-Modeling-List at nwhs.org






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Ma

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