When tightening a c'sunk bolt in (comparatively much weaker) plastic, the taper on the head acts like a wedge in the hole and can split out the plastic (a radial crack from the hole to the edge) if over-tightened. You can certainly use c'sunk bolts; just don't over tighten them. I think they are much cleaner looking than raised heads. Tod M17 #408 BuscaBrisas -----Original Message----- From: montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com [mailto:montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com ] On Behalf Of David W. Wood Sent: Sunday, April 23, 2006 9:08 AM To: montgomery_boats@mailman.xmission.com 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 -=- dwood@dwoodworks.com 1981 M15 -=- Hull #163 _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats