Fasteners Flashcards
The internal thread needed to insert a Heli-coil is made using what kind of tap?
Heli-coil tap
The initals UNF as used with thread systems means what?
Unified National Fine
A hole only drilled part way is called a?
Blind Hole
When threading a blind hole you start the thread with what kind of tap?
Taper Tap
What does the 24 stand for in 10 - 24 x 3/4 ?
24 Threads per inch
Castled nuts are used with what?
A cotter pin.
On the screw thread designation 5/8 - 11 UNC, 5/8 stands for what?
Major Diameter
What type of thread is this?
The Acme Thread Form
The length of hexagonal cap screw is determined by measuring what?
Its penetrating length.
What type of pin would you find on the end of an impeller shaft where the impeller is held by a castellated nut?
Cotter pin.
The part of a screw thread that connects the crest to root is called?
Flank
On the screw thread designated as M16 x 2 x 50, what does 2 stand for?
Pitch of the thread.
When do you use a plug tap?
Between using a Taper Tap and Bottoming Tap
Lock wires are generally used to lock what?
Bolts
The diameter of a threaded bolt measured from the crests of the threads is known as?
Major Diameter
Answer
C)
Answer
C)
Answer
D)
Answer
10
Answer
B)
Answer
B)
Answer
D)
