OP 102 UTICA, OP 102 Datasheet - Page 7

• Manufacturer Part Number: OP 102
• Description: WRENCH, TORQUE, 5/16IN, 16N-M
• Manufacturer: UTICA

Specifications of OP 102

• Torque Range N-m: 16
• Drive Size - Metric: 5/16"
• Torque Max: 138in-lb
• Torque Range Ft-lb: 12
• Lead Free Status / RoHS Status: na

cycles and other application related details.
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Ordering Information
Utica products are distributed world-wide. To locate
your nearest Utica distributor, visit our website at
www.uticatools.com or contact us at
[phone] or fax [phone].
What Is Torque?
The concept of torque is a mystery for many people.
Ask a group of people to define torque and you’ll
probably receive a variety of answers. Open a
dictionary to the definition of torque and you’ll be
greeted with terms such as torsion, axis, and vector.
However, if the definition of torque is boiled down to
layman’s terms, it is the measurement of a turning or
twisting force. A simple example is the force
required to turn the head of a bolt on an automobile
chassis. Most tool boxes would include some of the
most common tools used to apply torque, such as
bolt. These two forces are closely related. The more
torque applied to the bolt head, the more tension or
“stretch” is applied to the length of the bolt.
To locate your nearest Utica Service Center
Tension
In Bolt
Force
Torque
Clamping
Force
screwdrivers,
wrenches, and
impact tools.
applied to the
head of a bolt
during a fasten-
ing process,
there are actually
two main forces
at work. First, we
are applying a
force - torque to
the bolt head to
tighten it. The
second force at
work is the ten-
sion or stretch
created that runs
the length of the
When torque is
Why Is Torque Important?
When we apply torque to fasteners such as bolts
and screws, we are actually clamping parts together.
The amount of torque applied determines how
well the fastener does its job in the long run. If we
apply too little torque, the fastener can vibrate and
eventually loosen. On the other hand, if we apply
too much torque, the fastener will over stress and can
break or strip the threads. Either way, the fastener
doesn’t do what its suppose to do – hold something
together. The objective is to apply enough torque to
a fastener, creating tension that is greater than any
external force trying to separate it.
How Is Torque Measured?
Torque is measured by multiplying the amount of
force applied by the distance from the point we are
turning. For instance, if we are turning a bolt and apply
5 lbs. of force at the end of a wrench measuring 1
ft., the torque would equal 5 ft. lbs. This doesn’t tell
us what the optimal torque is for the fastener, but it
does allow us to quantify the amount of torque we
are applying to a fastener.
What Is The Correct
Torque Level For A Fastener?
When an engineer calculates the correct torque level
for a fastener, several issues must be addressed. The
first issue is the maximum load that the fastener will
experience. Second is the strength of the material
that the fastener will clamp. Third is whether the joint
is hard or soft. The fourth issue is the nature of the
external force acting on the joint, such as vibration,
pulling, or twisting.
determine the optimal level of torque that should be
applied to a joint for maximum performance.
Through statistical analysis, an engineer can
10 lbs. of Force
@ 6”= 5 ft.lbs
@ 12”= 5 ft.lbs
5 lbs. of Force
5