M6.5 Fastners

Question 1

What are screw threads measured with?

Answer 1

Thread pitch gague

Question 2

What are the classes or fit for screws?

Answer 2

1 loose
2 free
3 medium
4 close
5 tight

Question 3

What is then flank on a thread?

Answer 3

Slope between root and crest

Question 4

What is the major diameter for male and female?

Answer 4

Male = crest to crest
Female = root to root

Question 5

What is the minor diameter for male and female?

Answer 5

Male = root to root
Female = crest to crest

Question 6

What is BSF?

Answer 6

British standard thread

Question 7

What doe BSW, BSP and BSF stand for?

Answer 7

British standard whitworth, British standard pipe, British standard fine

Question 8

What angle is the BSF?

Answer 8

55 degrees

Question 9

What angle is the British association?

Answer 9

47.5 degrees

Question 10

What is the American national thread angles?

Answer 10

60 degrees

Question 11

Where are fine threads used?

Answer 11

Vibration prone areas

Question 12

What direction can square threads go?

Answer 12

Both directions

Question 13

What direction can buttress threads go?

Answer 13

One direction

Question 14

What direction can acme threads go?

Answer 14

Both directions

Question 15

What does X mean in materials identification of bolts?

Answer 15

Steel

Question 16

What does - mean in material identification of bolts?

Answer 16

Corrosion resistant steel

Question 17

What does - - mean in material identification of bolts?

Answer 17

Aluminium

Question 18

What does the triangle mean in material identification of bolts?

Answer 18

Close tolerance

Question 19

What load do Clovis bolts carry?

Answer 19

Shear

Question 20

What load do eye bolts carry?

Answer 20

Tension

Question 21

What does a internal wrenching bolt need under its head?

Answer 21

Washer

Question 22

Describe low temp self locking nuts

Answer 22

. 121 degrees max
. Nylon cuts

Question 23

Describe high temp self locking nuts

Answer 23

. 121 degrees minimum
. Friction locked

Question 24

What are anchor nuts used for?

Answer 24

Panels removed regularly

Question 25

Where are tinnerman nuts used?

Answer 25

Are with chance of magnetic field

Question 26

What is a stud?

Answer 26

Shaft threaded at both ends

Question 27

Describe a standard stud

Answer 27

Same throughout

Question 28

Describe a waisted stud

Answer 28

Weight saved throw minimised thread

Question 29

Describe a stepped stud

Answer 29

Anchorage in soft materials, has a step up

Question 30

Describe shouldered studs

Answer 30

Lateral rigidity, different diameters

Question 31

What 3 ways are studs removed?

Answer 31

Stud box, stud insertion tool, lock nuts

Question 32

What is used to repair a thread?

Answer 32

Heli coil

Question 33

What is a heli coil?

Answer 33

. Replaces thread . 1/2 pitch below surface

Question 34

What’s are the 3 screws?

Answer 34

. Machine . Structural . Self tapping

Question 35

What is a dowel?

Answer 35

Alignment tool

Question 36

What’s a spring washer

Answer 36

Friction locking

Question 37

Can a tab washer be reused?

Answer 37

No

Question 38

When can a shakeproof locker be reused?

Answer 38

If springiness is retained

Question 39

What does a heavy duty dzus faster have?

Answer 39

Grommet

Question 40

What loads does a taper pin carry

Answer 40

Shear

Question 41

What materials are split pins

Answer 41

Carbon or cress

Question 42

What should you ensure with a gib head key

Answer 42

Goes in certain depth only

Question 43

What does 426 mean?

Answer 43

Countersunk

Question 44

What does 470 mean?

Answer 44

Universal

Question 45

What is the diameter and length measured in with rivets?

Answer 45

Diameter 1/32 Length 1/16

Question 46

What is a 1100 rivet?

Answer 46

Plain head, A

Question 47

What is a 2117 rivet?

Answer 47

Dimple head, AD

Question 48

What is a 5056 rivet?

Answer 48

Cross, B

Question 49

What is a 2024 rivet?

Answer 49

Double lines, DD

Question 50

What is a 7050 rivet?

Answer 50

Circle, E

Question 51

What is a 2017 rivet?

Answer 51

Triangle, D

Question 52

What are CRES rivets used for?

Answer 52

Firewalls

Question 53

How is Monel identified in rivets?

Answer 53

Two dots

Question 54

What does special or blind rivets access?

Answer 54

One side

Question 55

What rivets do huck lock replace?

Answer 55

Solid shank rivets

Question 56

What’s the difference between cheery lock and max?

Answer 56

Cherry max only requires one tool

Question 57

What does an Olympic lock require?

Answer 57

Specific tool

Question 58

What does a hi lock have?

Answer 58

Internal thread