Return-Path: Received: from smtp6.gateway.net ([208.230.117.250]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Thu, 20 Jul 2000 02:36:30 -0400 Received: from oemcomputer (1Cust46.tnt1.coeur-dalene.id.da.uu.net [63.27.107.46]) by smtp6.gateway.net (8.9.3/8.9.3) with SMTP id CAA05821 for ; Thu, 20 Jul 2000 02:42:45 -0400 (EDT) Message-ID: <000901bff217$13200b60$2e6b1b3f@oemcomputer> Reply-To: "dfs" Reply-To: lancair.list@olsusa.com From: "dfs" To: "Lancair List" Subject: lockwashers again Date: Wed, 19 Jul 2000 23:52:10 -0700 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Just a note to Walt Dodson re: those coarse threads used by the engine mfg's -- coarse threads are required for those fasteners that are threaded into aluminum. Particularly the cottage cheese aluminum used in the Lyc and Con castings. Through-bolts, e.g., those that have a nut on both ends and do not engage threads in the aluminum, should use a fine thread so the nut can be properly torqued - with some expectation that it'll hold the torque. Pull up the required torque on a fine thread in aluminum and it's just as liable to pull out as not. My point being, all coarse threads are not necessarily bad. Dan Schaefer >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>