5-67.
What type of screw is self-tapping?
1.
wood
2.
Sheet metal
3.
Lag
4.
Brass
5-68.
Sheet metal screws can fasten metal
up to what maximum thickness?
1.
28 gauge
2.
30 gauge
3.
32 gauge
4.
34 gauge
5-69.
What type of screws are used to
fasten metals up to one-fourth inch
thick?
1.
Sheet metal
2.
Thread-cutting
3.
Lag
4.
Flathead brass
5-70.
What type of bolts, because of their
lack of strength, are used only for
fastening light pieces?
1.
Carriage
2.
Machine
3.
Stove
4.
Expansion
5-71.
Of the following types of bolts,
which should be used to fasten
load-bearing members?
1.
Lag
2.
Expansion
3.
Stove
4.
Carriage
5-72.
What type of bolt has a square
section below the head that embeds
into the wood to keep the bolt from
turning?
1.
Carriage
2.
Expansion
3.
Machine
4.
Stove
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