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RE: Aluminum Lag Bolts
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Aluminum Lag Bolts
- From: "Christopher Banbury" <cbanbury(--nospam--at)arkengineering.net>
- Date: Fri, 22 Jun 2007 19:22:01 -0400
You might consider using enamel or epoxy
coated screws. These are commonly used to attach aluminum and other exotic
metal roofs to wood or steel roof framing.
Christopher Banbury, PE
PO Box 10129, Brooksville, FL 34603
22 North Broad ST, Brooksville, FL
Phone: (352) 754-2424
Fax: (352) 754-2412
From: Gerard Madden,
Sent: Friday, June 22, 2007 7:01
Subject: Aluminum Lag Bolts
Is there such a thing?
I need to fasten some aluminum to the exterior of a wood frame building and
don't want to use steel lags or stainless steel lags due to dis-similar metals.
Its a wood framed stud wall with plywood sheathing, then the aluminum right up
against the sheathing. Need to lag into the wall studs. A 3/8" carbon
steel lag about 4" long would work by calc.
I know I can put neoprene washers under the head of the lag, but the bearing of
the shaft on the hole in the aluminum seems to be an unavoidable contact point.
I asked something similar a few months back, got a lot of helpful replies, but
this project has surfaced again and need to figure out this connection.
I've browsed the web and found places that make aluminum screws of very small
diameters but seem to be for sheet metal applications. But this can't be the
first time in engineering history someone wanted to connect decorative aluminum
to a wood building. :-)
any help is appreciated.