Non Threaded Fasteners Flashcards

1
Q

6 common heads of rivets are

A
button
flat countersunk
flat
truss
oval
oval countersunk
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2
Q

small rivets are measured by

A

weight per 1000 rivets

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3
Q

rivet used in transportation industry, installed cold to prevent structural damage and provides maximum joint strength

A

solid rivet

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4
Q

rivet, most common, have all compressive and shear strength of solid rivets when they are clinched and holes must be pre drilled

A

semi tubular rivets

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5
Q

rivet used in cutlery and made in male and female pairs

A

compression/cutlery rivets

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6
Q

rivets that save time by not pre drilling, effective in leather, wood, plastics, thin sheet metal. strength and thickness of workpiece is limiting factor

A

self piercing rivets

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7
Q

rivet used in high volume production line, they may be two pieces with a mushroom cap to give a more finished appearance

A

tubular rivets

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8
Q

rivets used in light duty and confined areas

A

blind rivets

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9
Q

rivets that is high performance, flush break blind fasteners

A

structural breakstem rivets

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10
Q

rivets used for blind application, detonates a small explosive charge

A

explosive rivet

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11
Q

the strongest structural breakstem fastener, they are available in bolt and collar style, prevents movement or flexing

A

lockbolt fastener

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12
Q

how much clearance should keys have on top

and how should they fit on the sides

A

.002 to .005 top

fit tight on sides

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13
Q

key used on shafts over 6 inches in diameter

A

flat

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14
Q

key used on shafts under 6 inches in diamter

A

square

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15
Q

key used when hub slides back and forth on shaft

A

pratt and whitney

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16
Q

key used when shaft and hub are subject to very heavy loads

A

chamfered key

17
Q

key used in lighter applications such as pulleys and gears

A

woodruff key

18
Q

how are wood ruff keys sized

A

width/32 diameter/8

19
Q

key used to lock the hub or shaft in heavy loading condition and transmitting heavy loads

A

gib head key

20
Q

pin used to aligned parts

available in.0002 oversized or .001 for repairs

A

dowel pin

21
Q

pin is press fit in a reamed hole, are used for precise machine assembly, has a 1//4 inch per foot taper

A

tapered dowel pin

22
Q

pin used to connect a gear or other parts to a shaft, designed to disconnect on overload

A

shear pins

23
Q

the 2 radial locking pins are

A

solid grooved pin

hollow roll or spring pin

24
Q

washer found in bearing assemblies, where positive location is important. this assembly uses a taper sleeve, tapered bored bearing and a radially slotted lock nut

A

tab washer

25
Q

washer used in watertight and gas tight joint

A

belleville or conical washer

26
Q

washer common with steel structural steel components such as I beam that require square bearing surfaces for riveting and bolting

A

bevelled washer

27
Q

sealants are categorized into what 3 categories

A

rigid-hardening
flexible-non hardening
tapes

28
Q

sealer used on small surface irregularities almost paper like

A

gasket sealer

29
Q

sealant for close fitting components, RTV- Room temperature vulcanizing is an example

A

anaerobic sealant