6.5.2 Flashcards
What is the definition of a bolt?
When it is tightened with a nut
What is the definition of a screw?
When it is tightened into a threaded hole by its head
Why should you install the head in the uppermost or foremost position?
Less risk of fastener falling if loose
How much of the fastener should appear through the nut?
1/32 in or the chamfered end
What is a stud?
A rod with thread portions on the end with a plain portion inn the middle
What are the four types of studs?
- standard
- waisted
- stepped
- shouldered
What are the three ways to install studs?
- stud box
- stud insertion tool
- lock nuts
How do you remove a undamped stud?
The same way you installed it
How do you remove a damaged stud?
Filed flats or ezi-outs
What is a lock nut?
When a thin plain nut is tightened onto the main nut
What is a nylon stiffnut?
When a nut has a nylon inside to allow the fastener to make its own thread
What are oddie stiffnuts?
A nut that has tongues to allow it to keep hold of the fastener
What are aerotight and philidas stiffnuts?
A nut that has designed gaps into it to provide a friction lock
At what temperature should all-metal locknuts be used?
120°C (250°F)
