X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 21 Nov 2012 11:32:50 -0500 Message-ID: X-Original-Return-Path: Received: from [62.149.177.237] (HELO smtp01-vf.aruba.it) by logan.com (CommuniGate Pro SMTP 6.0c2) with SMTP id 5891613 for lml@lancaironline.net; Wed, 21 Nov 2012 09:08:17 -0500 Received-SPF: none receiver=logan.com; client-ip=62.149.177.237; envelope-from=catignano@teletu.it Received: (qmail 16613 invoked by uid 89); 21 Nov 2012 14:07:38 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1-vf.vf.aruba.it X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=BAYES_50 autolearn=disabled version=3.3.1 Received: from unknown (HELO ?192.168.0.6?) (catignano@93.151.249.110) (de-)crypted with TLSv1: DHE-RSA-AES256-SHA [256/256] DN=unknown by smtp1-vf.vf.aruba.it with ESMTPSA; 21 Nov 2012 14:07:38 -0000 X-Original-Message-ID: <50ACE028.7040106@teletu.it> Disposition-Notification-To: "John F. Herminghaus" X-Original-Date: Wed, 21 Nov 2012 15:07:36 +0100 From: "John F. Herminghaus" User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] Re: Robertson screws References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------020601080408070706020103" This is a multi-part message in MIME format. --------------020601080408070706020103 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Bill, I agree with you about torx screws, and have also bought from Microfasteners. However, their selection of sizes is limited. Do you know of another source with more choice?. John Herminghaus IV-P I-VVVV On 20.11.2012 18:11, Bill Harrelson wrote: > Dico, > I use almost no phillips screws on my planes. All of my screws are > torx which are MUCH easier to work with and don’t cam out like > phillips. 100 degree countersunk, stainless, torx machine screws are > available. I get ‘em at: > http://www.microfasteners.com/catalog/products/SSCFCMXS.cfm > Bill Harrelson > N5ZQ 320 2,150 hrs > N6ZQ IV 50 hrs > *From:* Dico Reijers > *Sent:* Tuesday, November 20, 2012 8:39 AM > *To:* lml@lancaironline.net > *Subject:* [LML] Robertson screws > Hi All, > > I'm wondering why we don't use Robertson screws > (http://joneakes.com/jons-fixit-database/418-History-of-the-Robertson-Screw) > on our airplanes... namely on the cowls and other areas that are > removed often. Having taken my cowling off and on about 15 times in > the last couple months, the Phillips screws get chewed up pretty > good. The Robby screws would be infinitely better I would think -- > certainly cosmetically they would look better after many de-cowlings. > > Is the main reason because the Robertson screws are Canadian and the > Phillips are US and the airplanes are US? Or is there a technical (or > other) reason we don't use them? > > -Dico --------------020601080408070706020103 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Bill,

I agree with you about torx screws, and have also bought from Microfasteners.  However, their selection of sizes is limited.  Do you know of another source with more choice?.

John Herminghaus
IV-P I-VVVV
On 20.11.2012 18:11, Bill Harrelson wrote:
Dico,
 
I use almost no phillips screws on my planes. All of my screws are torx which are MUCH easier to work with and don’t cam out like phillips. 100 degree countersunk, stainless,  torx machine screws are available. I get ‘em at:  http://www.microfasteners.com/catalog/products/SSCFCMXS.cfm
 
 
Bill Harrelson
N5ZQ 320 2,150 hrs
N6ZQ  IV  50 hrs
 
 
 
Sent: Tuesday, November 20, 2012 8:39 AM
Subject: [LML] Robertson screws
 
Hi All,

I'm wondering why we don't use Robertson screws (http://joneakes.com/jons-fixit-database/418-History-of-the-Robertson-Screw)  on our airplanes... namely on the cowls and other areas that are removed often.   Having taken my cowling off and on about 15 times in the last couple months, the Phillips screws get chewed up pretty good.  The Robby screws would be infinitely better I would think -- certainly cosmetically they would look better after many de-cowlings.

Is the main reason because the Robertson screws are Canadian and the Phillips are US and the airplanes are US?  Or is there a technical (or other) reason we don't use them?

-Dico

--------------020601080408070706020103--