ZāGO / News
Top 10 “Tech Tips” for
Choosing the Best Sealing Product
2013 -- Newark, NJ – If your equipment is exposed to harsh
environments then your equipment is best served and
protected by using sealing screws and fasteners. ZaGO’s line
of self-sealing screws, bolts, and rivets offers you
unsurpassable fastening and sealing power. Here are a few
tips to consider when choosing sealing screws for your next
Tip #1: Choose the right screw material and o-ring
material. When considering the choice of material there are
5 important criteria: Mechanical Properties, Corrosion
Resistance, Fabrication Operations, Total Cost and Material
availability. When choosing an “O”-ring factors that should
be considered are the application for which the “O”-ring is
to be used; the media to be sealed; the size of the fastener
to be sealed; and the temperature and pressure to which the
“O” ring will be subjected.
Tip #2: Use a clearance hole. We recommend an oversized
clearance hole be machined on the mating part in order to
prevent the o-ring from being damaged. Machining a clearance
hole forms a “squeezing” area for the o-ring to sit and fill
the gap between the o-ring groove and the plating surface
avoiding excessive twisting, nibbling or cutting of the
Tip #3: Use an Over-sized Head. If your application
requires a large opening to be sealed, try ZaGO’s oversized
head sealing screws for complete metal-to-metal contact with
360 degree sealing power.
Tip #4: Use a Socket Button Washer Head Seal Screw. If
your application requires sealing of a large opening we
recommend using the socket button washer head sealing screw
as the larger head accommodates a larger surface to
accomplish metal-to metal contact with the advantage of a
low projection head.
Tip #5: Provide a Print. If you have an application that
requires a special seal screw or a non-standard machine
screw, just email us a print to email@example.com. We can
manufacture to your exact specifications.
Tip #6: Use a Socket Cap Screw. The 6 flat surfaces
within the recess allows for high torquing without damaging
the head and require no side clearance restrictions. Ideal
for assemblies with close tolerances.
Tip #7: Need help choosing a product? ZaGO’s technical
engineering team is always available to provide assistance
in choosing the right sealing product. You can also visit us
at www.zago.com/Gallery to view ZaGO’s capabilities for
producing “special” sealing products.
Tip #8: Save time. ZaGO is now offering non-standard
machine screws without a sealing element. If your
application requires sealing or non-sealing machine screws
ZaGO is your one-stop-shop due to our fully equipped
in-house machine shop.
Tip #9: Don’t be afraid to ask. If you need a fastener
with dimensions outside the standard range, ZaGO is your
best source for unusual lengths and head sizes. We can
modify to your exact specifications.
Tip #10: Advise if quick turn-around is needed. Our ISO
certified in-house machining process helps us provide you
with the best lead times and the highest quality products.
Contact: Jaqueline Luciano-Brito
ZaGO Manufacturing Company, Inc.
Phone: (973) 643-6700
Fax: (973) 643-4433
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