What type of screw gun should I use
to install self drilling fasteners?
Standard 2,000 to 2,500 RPM variable
speed screw guns with 4 to 8 amps and a positive clutch and or depth locating nose piece
are recommended. DO NOT USE IMPACT TYPE GUNS.
Does 410 Stainless rust?
Yes, especially near or around salt
water environments.
DB suggest to all of its customers to use either our Marutex
Ultrastainless Self Drilling Fasteners or 304 SS Self Tapping
Fasteners.
What thickness can a #12 self drilling
fastener drill into?
That varies greatly on the point number
of the fastener, ie #2, #3,
#4, #4.5, #5. Please see our Technical
Brochure for more information.
Does DB ship abroad?
DB has shipped product to every continent,
except of course Antarctica. And our sister company Multi
Accessorios has 6 warehouses in Mexico and one in El Salvador
as well.
Do I really need to use the Colorgard
Calculator for S-5 Colorgard?
Without using the Colorgard Calculator
you are putting your new roof and the people and or property
below the roof at risk. The Colorgard Calculator will calculate
to the end user the exact amount of S-5 products to use with
their individual job and ensure your S-5 project will be adequate
for the amount of snow you will be holding up. You can visit
the S-5 Colorgard Calculator at www.s-5.com.
Does DB carry domestic fasteners?
DB carries a complete line of Domestic
Self Drilling Fasteners along with a complete line of Domestic
A325 hex bolts and TC Bolts. Some fasteners are just not available
domestically anymore. These include most A307 hex bolts, drywall
screws and smaller bolts and nuts. Need domestic? Click on
our American flag on the upper right hand corner of our home
page and it will take you to our domestic catalog.
Or you can get there from here: DB
Domestic page
Can you match any color in your in house
paint department?
DB can match any color, even metallic.
DB also does various multi colored fasteners, one paint color
looks as if the fastener is rusted for those beautiful Cor-ten
steel roofs.
Self Drilling or Self Tapping?
Self Drilling Fasteners have a drill
point on the end of the fastener. This drill point enables
the fastener to “self drill” into steel. Self Tapping fasteners
will only “tap” their threads, hence you have to predrill
self tapping fasteners.

Self Driller

Self Tapping
What is the difference in Long Life
Fasteners?
Long Life Fasteners come in many different
coatings and or heads. You can apply a long life coating to
a zinc plated fastener and the coating will prolong the life
of the fastener over normal zinc. Some of these coatings you
may have heard of before, Climaseal from ITW Buildex, Stalgard
from Elco and DB carries its own Mag life. Normal zinc will
only make it to about 10 to 20 hours to red rust in a salt
spray test, long life coatings can go anywhere from 500 to
1,000 hours in salt spray. Another test for coatings is called
Kesternich. While not as well know as salt spray, Kesternich
testing is where the fastener is put into a chamber at a specific
temperature and acid solution for a specific time. Normal
zinc plated fasteners only last 1 cycle to red rust. Long
life coated fasteners can make it anywhere from 5 to 10 cycles.
Long life can also mean a special head on
the fastener. These heads can either be a Zinc Die Cast head
which makes the head of the fastener not rust, but the Zinc
Die Cast can turn dark grey to black near the ocean or other
highly corrosive areas, these Zinc Die Cast heads are available
on almost any fastener. DB calls its Zinc Die Cast fasteners,
ZDC.
Another long life fastener is ITW Buildex’s
SCOTS fastener. This fastener has a head of 300 stainless,
hence the head will never rust.
If you truly want a long life fastener try
DB’s UltraStainless fasteners, they will never rust,
period!
Does DB have installation guidelines
for Self Drilling Fasteners?
DB does offer a 3 page brochure by the
name of "Installation Guidelines". This brochure
helps installers to properly install self drilling fasteners.
You can download this brochure here.
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