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Scott S's Avatar
Join Date: Dec 2000
Location: Mile High City
Posts: 803
Threaded holes in rear bumper - 74+

Hi All -
I located a euro rear bumper and bumper guards for my 77.
I did not know that the screws/fasteners for many of the rubber bits and the lower valance actually thread into the bumper itself. Should the body shop plug these holes when they paint to keep the threads clean?

Thanks very much -
Scott S
- A pile of British stuff
- A growing pile of German stuff
... oh, and two Hondas - complete with car seats and pounds of fish crackers smashed into the carpet (and seats, and door pockets, etc etc etc....)
Old 06-28-2013, 08:42 AM
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962porsche's Avatar
Join Date: Feb 2009
Location: branford ct
Posts: 3,316
there is no real need to plug threaded holes .
what we do in my shops is thread chase all threaded holes (not tap) before we reassemble things . we also put a dab of copper ( we only use copper ) anti seize on the threads .
the reason why we will only use copper anti seize is it has a much higher melting point than aluminum anti sieze does . not that that will matter on body parts but the other reason is years and years down the road you will never have any trubble removing a fastener .
if you used a aluminum anti sieze on a aluminum part and then screwed a metal bolt into it your not really doing any thing because it's still aluminum and over many years the bolt will still rust and seize into the threads .
Old 06-28-2013, 05:52 PM
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