Fasteners

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

Nuts and bolts use ____ to distribute clamping pressure over a larger area.

• rivets
• cotter pins
• keys
• washers

In the bolt description 1/4-28 UNF -2A, the fraction 1/4 represents the _______ of the bolt.

• Class of fit

• Diameter

• Length

• Pitch

What is dimension D?

• Thread Pitch

• Bolt Diameter

• Major Diameter

• Minor Diameter

The higher the grade number of a bolt or nut, the higher the :

• flexibility of the bolt or nut
• weight of the bolt or nut
• None of the answers listed
• tensile strength of the bolt or nut

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 fastener type is shown in the picture?

• Tap

• Clevis

• Nut

• Spline