Lesson 4: Choosing and Installing the Correct Masonry Fastener

Question 1

What does the term “base material” refer to with respect to masonry fasteners?

Answer 1

Concrete, Brick, or Block

Question 2

Concrete is called “green concrete” for how many days?

Answer 2

28 Days (Later)

Question 3

When fastening a heavy item to brick, what is the most important step?

Answer 3

Make sure the brick is anchored to the main structure.

Question 4

What do mechanical type masonry fasteners use to obtain their holding values?

Answer 4

Friction

Question 5

What force do mechanical anchors use to create their holding strength?

Answer 5

Expansion

Question 6

A drop-in anchor requires the use of a(n) ? .

Answer 6

Setting Tool

Question 7

What style of anchor would be considered a male type fastener?

Answer 7

D. b or c .A sleeve anchor, and a wedge anchor

Question 8

What style of anchor would be considered a female type fastener?

Answer 8

D. a or b (a drop in anchor or a single expansion anchor)

Question 9

What type of anchor comes in zinc-plated, hot-dipped galvanized, and stainless steel?

Answer 9

Wedge anchor

Question 10

How important is the diameter of the hole in the base material when installing a masonry fastener?

Answer 10

Critically Important.

Question 11

What do all male concrete fasteners (except for the concrete screw) require the hole to equal?

Answer 11

The anchor diameter

Question 12

What hole diameter does a female anchor require?

Answer 12

Larger than the anchor designated diameter

Question 13

What information is required to determine the diameter of fastener to be used?

Answer 13

Weight of the object, fixture hole size, specifications

Question 14

What factor is not important when determining the length of anchor to be used?

Answer 14

Thread Length

Question 15

What is the rule of thumb for the spacing of concrete fasteners?

Answer 15

10 Anchor diameters

Question 16

What is the rule of thumb for distance from an unsupported edge?

Answer 16

5 anchor diameters

Question 17

The 1/4-inch self-tapping screw requires what size bit?

Answer 17

3/16”

Question 18

The 3/16-inch self-tapping screw requires what size bit?

Answer 18

5/32”

Question 19

What information is most important when determining what fastener to use?

Answer 19

Weight of object, thickness of material, embedment depth

Question 20

What type of fastener is best suited in a dry environment?

Answer 20

Zinc-Plated

Question 21

316 Stainless Steel is best suited for use in what type of environment?

Answer 21

Submerged in water/chemicals

Question 22

Hot-dipped galvanized wedge anchors are designed to be used in what type of environment?

Answer 22

Moist

Question 23

What must be used to drill a hole in the masonry when installing a masonry fastener?

Answer 23

C. A and B. (ANSI standard carbide bit, Hammer drill)

Question 24

How much deeper than the anchor being installed should the hole be drilled?

Answer 24

1/4” to 1/2” Deeper

Question 25

Before the anchor is placed in the hole, workers should ? .

Answer 25

Clean the hole out of all dust and debris.

Question 26

When drilling and installing a concrete fastener, it is important to ? .

Answer 26

Use safety goggles and earplugs.