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Worksheetsfasteners
Total questions: 29
Worksheet time: 15mins
A fastener with internal threads is known as a _________.
bolt
nut
tap
lock washer
In the bolt description 3/8-16 UNC -2A, the number 16 represents the
Thread Tolerance
Threads Per Inch
Major Diameter
Class of Fit
In the bolt description 1/4-28 UNF -2A, the fraction 1/4 represents the
Class of fit
Diameter
Length
Pitch
U.S. customary bolts are marked with __________ to indicate bolt grade. Metric bolts are marked with ______________.
Lines; Numbers
Numbers; Lines
Lines; Symbols
Symbols; Lines
Badly smashed or stripped threads may be repaired with either a _______ or __________
Tap; Die
Plug; Tap
File; Lock-Tite
They can't be fixed
The bolt head shown is from a _____________ bolt.
U.S. Customary
UNF
metric
medium
What bolt grade is shown in the illustration?
Grade 2
Grade 3
Grade 5
Grade 8
Which are correct to measure the bolt length?
D
C
B
A
The threaded plug shown has a thread pitch of _________.
24 mm
24 threads per inch
24 inches
24 teeth
Which are correct to measure the bolt Diamter?
D
C
B
A
In the bolt description 1/4-28 UNF -2A, 28 represents the...
Class of fit
Diameter
Length
Pitch
Choose the machine screw
Choose the Nyloc nut
Choose the bolt
Choose the lock washer
Choose the nail
Choose the washer
Choose the standard nut
A gasket is used to
ease engine starting
seal moving parts
seal gaps between parts
none of the above
The type of nut shown is a ___________ nut.
nylock
acorn
brazil
castle
