USR 2021 Rigging Catalog for flip - Flipbook - Page 18
Outshines The Rest
Term Definitions
Durable
DuraBrite stainless hardware is made from high-quality 304
or marine-grade 316 stainless steels that provide exceptional
corrosion resistance built to withstand the harshest
environments. Our steel products are also zinc-plated or
galvanized for corrosion protection.
Field-Proven
The roots of our DuraBrute products go back over 40 years of
field-proven products serving in tough marine and industrial
use. We’ve got saltwater in our veins; we started in the marine
market over 40 years ago and have grown our reputation for
long-lasting products.
Exceptional Value
Not only do we build durable, field-proven hardware, but we
also know the value of a dollar. DuraBrite hardware delivers
quality and durability while providing an unbeatable industryleading value.
Did You Know?
Not all stainless steel is equal. Although it doesn’t stain as
easily as other ironbased metals, that doesn’t mean it is 100%
stain-proof. Stainless steel’s corrosion resistance differs by
grade. So just like regular steel, stainless steel can become
effected by different factors that in time can cause it to rust.
Regardless of grade, however, it can endure a lot more abuse
than standard steel before showing signs
of abrasion.
“DuraBrite is in the name: durable, and the
finish on its products holds up well. I am very
pleased with the quality.”
- Ryan D., Edgartown, MA
WARNING: Do not use the products in this
section for overhead lifting, support of human
weight, or athletic or layground equipment,
or other situations where personal safety
or valuable property could be endangered.
Misuse can result in serious injury or death.
18
Working Load Limit (WLL) - The Working Load Limit is the
maximum load / force allowed. Consideration must always
be given to extreme high or low temperatures, chemical
solutions, vapors, prolonged immersion in salt water or any
other form of unusual condition. The WLL should NEVER be
exceeded.
Proof Test Load (Proof Load) - The term “Proof Test”
assigns a quality control test applied to the product for the
exclusive function of exposing flaws in material or build.
The Proof Test Load (normally 2x the WLL) is the load which
the cable underwent & sustained without malformation
when new and under laboratory test conditions. The Proof
Test Load does not mean that the WLL should ever be
exceeded.
Breaking Strength - Breaking Strength is the average
force at which the product, in the condition it would leave
the factory, has been found by to break when constantly
increasing force is applied in direct line to the product at a
steady rate of speed on a standard pull testing machine.
Remember: Published Breaking Strengths were acquired
under controlled laboratory conditions. Always refer to
the Working Load Limit as a criterion for service or design
purposes. Do not use the Breaking Strength for this
purpose.
Design Factor - Also known as Safety Factor, it is the ratio
of the Breaking Strength to the Working Load Limit. Usually
computed by dividing the Breaking Strength by the WLL
and generally expressed as a ratio (ex: 5:1).
Shock Load - A load occurring from rapid change of
movement, such as impacting, jerking or swinging of a
static load. Sudden release of tension is another form of
shock loading. Shock loads are usually notably greater than
static loads. Any shock loading must be considered when
selecting the item for use in a system. Avoid shock loads as
they may exceed the Working Load Limit.
Mil-Spec, MS - A military standard for wire and sleeves.
AN Standard - Airforce-Navy Aeronautical Standard.
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