Oops! Sorry to have made the earlier post when I realized the discussion was on a M15 not the M17. Dooh!! Joe M17 Seafrog ----- Original Message ----- From: Joe Murphy To: For and about Montgomery Sailboats Sent: Thursday, May 06, 2010 8:59 AM Subject: Re: M_Boats: M-15 Side-stay chain plates Don't know if this helps but on my 2008 M17 the chain plates are through bolted with a SS backing plate secured with the nylon locking nuts. You should be able to get a ss backing plate from any metal fabricator. If you can't let me know and I can see what a pair would cost here. Joe M17 Seafrog ----- Original Message ----- From: Patti Raymond To: For and about Montgomery Sailboats Sent: Wednesday, May 05, 2010 7:18 PM Subject: Re: M_Boats: M-15 Side-stay chain plates Thank you for the input Gila and Gary...I'm not of a mind to tap the back-bar so I think I'll just use the old bar...rotate it 90 degrees and re-drill for a thru-bolt...probably flatten the area around the nut and washer and double the nut up...there was already a nut and washer to snag my fingers on the original application so no big deal...again thank you....Greg ________________________________ From: "GILASAILR@aol.com" <GILASAILR@aol.com> To: montgomery_boats@mailman.xmission.com Sent: Tue, May 4, 2010 10:32:10 PM Subject: Re: M_Boats: M-15 Side-stay chain plates Greg - Yes and No, they need to be threaded (tapped) OR you need to have nuts on the backside of the aluminum bar stock and longer bolts with flat washers - be sure to use an anti-corrosive such as Lanocote (Forespar) on the aluminum and SS fasteners. Butter 'em up. Quality fasteners are in order. You could use SS bar stock but that would be 'fun' to drill and tap - Bronze would also work here. GO In a message dated 5/4/2010 8:50:52 P.M. US Mountain Standard Time, pattiraymond@sbcglobal.net writes: So do they need to be threaded? ________________________________ From: Gary M Hyde <gmhyde1@mac.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Tue, May 4, 2010 5:19:38 PM Subject: Re: M_Boats: M-15 Side-stay chain plates So buy some round bar stock & make new ones. Sent from my iPhone :-) On May 4, 2010, at 4:45 PM, Patti Raymond <pattiraymond@sbcglobal.net> wrote: > I guess this is what you'de call them. Mine where loose so I tried tightening them and of course the 30 yr old bolt spapped like a brittle bone,,,no sweat I'll just slide the bolt out and replace....wrong...the backing bar? is aluminum, the bolts SS and the bars are threaded and the bolts are not going to come out...can I drill out the old bolts and just thru bolt back together or is the threading essential for strength...can I just toss the old backer and use a flat SS backing-plate...or are these a common item I can purchase at my daily sojourn to West Marine? Clear as mud....Greg Adams....#151 > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > Remember, there is no privacy on the Internet! _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet! _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats Remember, there is no privacy on the Internet!