Mailing List flyrotary@lancaironline.net Message #50532
From: Mark Steitle <msteitle@gmail.com>
Subject: Re: [FlyRotary] Re: Adaptor plate rivets
Date: Thu, 25 Mar 2010 13:24:43 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al,

I had a bunch of AN-6A bolts, so I used them with two thick washers, one under the head and one under the nut.  I mainly wanted to ensure that the shank went all the way through both pieces.  You might be able to use AN-5.5A or even AN-5A bolts if you use only one thin washer under the nut.  

Mark S.


On Thu, Mar 25, 2010 at 11:22 AM, Al Gietzen <ALVentures@cox.net> wrote:

To answer your question about the washers, I used thick washers on both sides.  But I'll have to remove them all in order to replace the AN-6A bolts with AN173-6A's.  I'm hoping the bolts arrive by this weekend so I can start putting everything back together.  

Normally washers are needed only under the side that you’re turning to apply the force; unless needed to provide shimming or a more uniform or larger surface.  The -6A length has a 3/8” grip length, and I assumed the plate was 1/8” and the flange ¼”.  If the thickness is less I may have to get some more, or thicker, washers.

 

Al


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