Mailing List flyrotary@lancaironline.net Message #38284
From: Ken Welter <rotarycoot.ken@gmail.com>
Subject: Re: [FlyRotary] Grade 10.9 vs. 8.8
Date: Fri, 6 Jul 2007 19:29:10 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
   The metric 8.8 is equivalent to SAE grade 5 if that helps, I have found it easier to find metric 8.8 bolts in socket heads.
 Ken





I cant seem to find a supplier of grade 10.9 for the
12mmx1.5

Assuming the engine has 4 mount points, the 2 stock
mount pads, each with 3-12mm bolts and 2 additional
mount pads.   Focusing on the 2 stock mount pads...

Will having grade 8.8 for the 6 bolts make a
substantive difference?

Thx...
-Scott

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