The only problem when we used countersunk 10-32 machine screws was it took us a little time to figure out that we had to drill the holes oversized by a couple of thousands; that's where the cracks came from. There is no need to really tighten the screws, I know that Schock simply glued in some of their windows with silicone, using a jig of some kind to hold them in place overnite.
Cleaning up the &($^% silicone was the real job! Jerry jerrymontgomery.org ----- Original Message ----- From: "Clarence Andrews" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "For and about Montgomery Sailboats" <[email protected]> Sent: Sunday, April 23, 2006 8:01 PM Subject: Re: M_Boats: Replacing M15 windows > If you want to use countersunk screws, you can use 100 degree aircraft > c'sunk screws and use a stainless countersunk CSK) washer. It will give you > the low profile of the CSK screw, and the washer will distribute the load so > that the only force on the plexiglass is the clamping force. Both the CSK > screws and washers are available from Aircraft Spruce and Specialty Company. > 951-372-9555 (California) or 877-477-7823(Georgia) > ----- Original Message ----- > From: "Norm Lane" <[EMAIL PROTECTED]> > To: "'For and about Montgomery Sailboats'" > <[email protected]> > Sent: Sunday, April 23, 2006 6:37 PM > Subject: RE: M_Boats: Replacing M15 windows > > > > Supposedly expansion & contraction is more likely to crack the window. I > > exaggerated when I said "everything I've read" but I did read it somewhere > > and it made sense to me. > > > > Norm > > > > > > > -----Original Message----- > > > From: > > > [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] > > > ion.com] On Behalf Of David W. Wood > > > Sent: Sunday, April 23, 2006 07:08 > > > To: [email protected] > > > Subject: M_Boats: Replacing M15 windows > > > > > > > > > > The screw holes are countersunk but everything I've read says not > > > > to do > > > > that. What do you think? > > > > > > First I've heard of that. Does anything you've read tell you why not > > > to countersink them? > > > > > > David > > > > > > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > > > David W. Wood -=- [EMAIL PROTECTED] > > > 1981 M15 -=- Hull #163 > > > > > > > > > _______________________________________________ > > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > > > > _______________________________________________ > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
