Post-Installed Anchors in Masonry US English | Page 65

Masonry Anchor Strength Design Guide 2024
MATERIAL SPECIFICATIONS
Carbon steel with electroplated zinc-nickel plating
• Carbon steel anchor components plated in accordance with ASTM F1941 to a minimum thickness of 5 μm .
• Nuts conform to the requirements of ASTM A563 , Grade A , Hex .
• Washers meet the requirements of ASTM F844 .
• Expansion sleeves ( wedges ) are manufactured from carbon or stainless steel .
• Nuts and bolts are finished with a proprietary coating . Only Hilti KB-TZ2 nuts can be used with KB-TZ2 bolts .
• Carbon steel bolts are manufactured from carbon steel .
Stainless steel
• All nuts and washers for type 304 anchors are made from type 304 stainless .
• All nuts and washers for type 316 anchors are made from type 316 stainless .
• Nuts meet the dimensional requirements of ASTM F594 .
• Washers meet the dimensional requirements of ANSI B18.22.1 , Type A , plain .
• Expansion sleeve ( wedges ) are made from stainless steel .
• Nuts and bolts are finished with a proprietary coating . Only Hilti KB-TZ2 nuts can be used with KB-TZ2 bolts .
• Stainless steel 304 bolts are manufactured from AISI Type 304 stainless steel .
• Stainless steel 316 bolts are manufactured from AISI Type 316 stainless steel .
INSTALLATION PARAMETERS
Table 1 — KB-TZ2 Installation Information — Fully Grouted CMU Construction — Face of Wall and Top of Wall
Design Information Symbol Units
Nominal anchor diameter ( in ) 1 / 4 3 / 8 1 / 2 5 / 8 3 / 4
Nominal bit diameter d o in . 1 / 4 3 / 8 1 / 2 5 / 8 3 / 4
Effective minimum embedment
h ef
in .
( mm )
1 1 / 2
( 38 )
1 1 / 2
( 38 )
2 1 / 2
( 64 )
2
( 51 )
3 1 / 4
( 83 )
2 3 / 4
( 70 )
4
( 102 )
3 1 / 4
( 83 )
4 3 / 4
( 121 )
Nominal embedment
h nom
in .
( mm )
1 3 / 4
( 44 )
1 7 / 8
( 48 )
3
( 76 )
2 1 / 2
( 64 )
3 3 / 4
( 95 )
3 1 / 4
( 83 )
4 1 / 2
( 114 )
4
( 102 )
5 1 / 2
( 140 )
Minimum hole depth
h o
in .
( mm )
2
( 51 )
2
( 51 )
3 1 / 4
( 83 )
2 3 / 4
( 70 )
4 1 / 4
( 108 )
3 3 / 4
( 95 )
4 3 / 4
( 121 )
4 1 / 4
( 108 )
5 3 / 4
( 146 )
Installation Torque - Carbon Steel
T inst
ft-lb
( Nm )
4
( 5.4 )
15
( 20.3 )
25
( 33.9 )
30
( 40.7 )
50
( 67.8 )
Installation Torque - Stainless Steel
T inst
ft-lb
( Nm )
6
( 8.1 )
15
( 20.3 )
15
( 20.3 )
35
( 47.5 )
50
( 67.8 )
Min . Dia . of Hole in Fastened Part
d h
in .
( mm )
5 / 16
( 7.9 )
7 / 16
( 11.1 )
9 / 16
( 14.3 )
11 / 16
( 17.5 )
13 / 16
( 20.6 )
Minimum Masonry Thickness
h min
in .
( mm )
7 5 / 8
( 194 )
Minimum Distance to Hollow Head
Joint 1
c min , HJ
in .
( mm )
2 1 / 2
( 64 )
2 1 / 2
( 64 )
2 1 / 2
( 64 )
2 1 / 2
( 64 )
2 1 / 2
( 64 )
3
( 76 )
Face of Wall
Top of Wall
Minimum Edge Distance
c min
in .
( mm )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
4
( 102 )
Minimum Anchor Spacing
s min
in .
( mm )
4
( 102 )
5
( 127 )
4
( 102 )
5
( 127 )
5
( 127 )
7
( 178 )
6
( 152 )
6
( 152 )
6
( 152 )
Minimum Edge Distance 2
c min , top
in .
( mm )
-
1 3 / 4
( 44 )
1 3 / 4
( 44 )
1 3 / 4
( 44 )
1 3 / 4
( 44 )
2 3 / 4
( 70 )
2 3 / 4
( 70 )
-
Minimum Anchor Spacing
s min , top
in .
( mm )
-
6
( 152 )
6
( 152 )
6
( 152 )
6
( 152 )
6
( 152 )
6
( 152 )
-
1 The minimum distance to hollow head joint is measured from the center of an anchor to the centerline of a hollow head joint ( vertical mortar joint ). 2 The minimum end distance from the center of an anchor to the end of the top of the CMU wall is 4 inches . Edge and end distances are illustrated in Figure 2 .
Figure 1 — Hilti KB-TZ2 Installation Parameters
Figure 2 — Edge and End Distances for Top of Wall Installation
Edge Distance KB-TZ2
End Distance
Masonry Fastening Technical Guide Edition 24 | 7.4 KWIK BOLT TZ2 EXPANSION ANCHOR Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458
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