Tools & Hardware Week 2

1

100

What are the 3 general aviation standards?

AN, MS, NAS

200

How many points are on a HEX head bolt?

6

300

Will the letters DD or C be in the part # of an AN bolt if it’s cad-plated nickel steel?

No

400

What does it mean if the letter “A” is in a clevis bolt part number?

Undrilled shank

2

100

What does U.N.F stand for?

Unified National Fine

200

What is a shear load?

Load applied sideways across the fastener

300

What do the letters DD represent in the AN bolt part number?

Corrosion-resistant steel

400

What is the number range of close-tolerance bolts?

AN173–AN186

3

100

What is T.P.I.?

Threads per inch

200

What is a tensile load?

Pulling apart in a straight line

300

What are the diameters of AN bolts measured in?

1/16" increments

400

What does the “L” in AN960L mean?

Thin/light washer

4

100

What does a thread gage identify?

Thread pitch

200

What materials can AN bolts be fabricated from?

Steel or corrosion-resistant steel

300

What is the number range of AN bolts?

AN3–AN20

400

What is the part number for an AN plain nut?

AN315

5

100

Which direction do you turn right-hand threaded fasteners to install them?

Right (clockwise)

200

What does an X on an AN bolt head represent?

Steel bolt

300

What is the number range of AN clevis bolts?

AN21–AN36