Lecture 12 Flashcards
1
Q
What is an external thread?
A
thread on the outside of a cylinder such as a bolt
2
Q
What is an internal thread?
A
a thread on the inside of a part such as a nut
3
Q
What is the crest of the thread?
A
the top of a thread
4
Q
what is the root of the thread?
A
the bottom of the thread (trough)
5
Q
What is the pitch of a thread?
A
the distance from a point on the crest of the thread to the corresponding point on the adjacent crest
6
Q
what is the major diameter?
A
- outside diameter of an external thread
- maximum diameter of an internal thread.
7
Q
what is the minor diameter?
A
- root of the thread of an external thread
- minimum diameter of an internal thread.
8
Q
General purpose metric threads are specified by ___ _____ and ____. So the dimension would look like…?
A
major diameter
pitch
M10 X 1.5
where M means metric, 10 is the major diameter, and 1.5 is the pitch
