1
What are the 3 general aviation standards?
AN, MS, NAS
What does U.N.F stand for?
Unified National Fine
What is T.P.I.?
Threads per inch
What does a thread gage identify?
Thread pitch
Which direction do you turn right-hand threaded fasteners to install them?
Right (clockwise)
How many points are on a HEX head bolt?
6
What is a shear load?
Load applied sideways across the fastener
What is a tensile load?
Pulling apart in a straight line
What materials can AN bolts be fabricated from?
Steel or corrosion-resistant steel
What does an X on an AN bolt head represent?
Steel bolt
Will the letters DD or C be in the part # of an AN bolt if it’s cad-plated nickel steel?
No
What do the letters DD represent in the AN bolt part number?
Corrosion-resistant steel
What are the diameters of AN bolts measured in?
1/16" increments
What is the number range of AN bolts?
AN3–AN20
What is the number range of AN clevis bolts?
AN21–AN36
What does it mean if the letter “A” is in a clevis bolt part number?
Undrilled shank
What is the number range of close-tolerance bolts?
AN173–AN186
What does the “L” in AN960L mean?
Thin/light washer
What is the part number for an AN plain nut?
AN315