Course Title:
Threaded Fasteners
12
Professional Development Hours/1.2 CEUs
Course
Description:
Today's threaded fasteners are highly engineered
products and function with the joined components as a system.
Fasteners should be considered from the very start of design
concept development, and understanding fasteners as a product is the
important first step to the effective use of fasteners in product design.
The introduction to fasteners course explains the fundamentals of
fasteners such as nuts, bolt and screws. Threaded fasteners are examined,
ranging from definitions of descriptive terms to how fastener strength is
determined and also fastener markings. The differences and similarities
between metric, inch, standard and special fasteners are described. The
importance of fastener standards is also explained. The different types of
fasteners are detailed, including usage and applications, manufacturing
and assembly.
Overall Course Objectives:
- Discuss
some fundamental decision criteria for selecting bolts, nuts,
and washers for an application.
- Describe
some of the options in bolt, nut, and washer styles.
- Understand
the terminology used to describe and specify nuts, bolts and
washers.
Course Content:
Lesson 1 – Fastener
Fundamentals
Objectives:
-
Name
the 2 main parts of a threaded fastener & explain the importance
of fastener standards.
-
Calculate
bolt strength using stress area & material strength.
-
Describe
the simplest way to express nut selection.
Lesson 2 – Externally Threaded Products
Objectives:
- Differentiate
between a bolt and a
screw.
- Identify
points, head styles, & driving features of smaller & larger
sized fasteners.
- Understand
how loosening resistant bolts & screws act to provide an extra
margin of safety.
Lesson 3 – Internally
Threaded Products and Washers
Objectives:
- Describe
what happens when a nut is over tightened or overloaded onto a bolt
in a fastener assembly.
- Identify
the major attributes and dimensions of
nuts and washers.
- List the different types of washers and recognize
why they are most often used in a joint.
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