8 Aircraft Hardware

Question 1

1. What is indicated by the markings on the heads of solid shank rivets?

Answer 1

The material that they are made of, and indirectly, their strength.

Question 2

2. How can you keep heat treated aluminum alloy rivets soft enough to install after the quenching process?

Answer 2

If the rivets are stored in a freezer, they will remain soft for several days.

Question 3

3. What is the grip length of a bolt?

Answer 3

The length of the unthreaded portion.

Question 4

4. In what way are AN standard steel bolts identified?

Answer 4

By the code markings on the bolt heads.

Question 5

5. What is the difference between a close tolerance bolt and a general purpose bolt?

Answer 5

Close tolerance bolts are machined to more accurate dimensions.

Question 6

For what types of applications are self locking nuts not allowed?

Answer 6

When either the bolt or the nut is subject to rotation.

Question 7

7. If the maintenance procedures don’t specify a torque value for a bolt or nut, how can you determine the proper values?

Answer 7

Consult a standard torque table such as found in AC 43.13-1B.

Question 8

8. What is the most commonly used type of aircraft control cable?

Answer 8

Extra flexible 7x19 stainless steel cable.