Masonry Anchor Strength Design Guide 2024
Table 8 — Hilti Carbon Steel and Stainless Steel KB-TZ2 design strength based on steel failure per ACI 318 Ch . 17
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
5 / 8
3 / 4
Tensile 2
ϕN sa lb ( kN )
Carbon Steel 1 Stainless Steel 1
Shear 3
ϕV sa lb ( kN )
Seismic Shear 4
ϕV sa , eq lb ( kN )
Tensile 2
ϕN sa lb ( kN )
Shear 3
ϕV sa lb ( kN )
Seismic Shear 4
ϕV sa , eq lb ( kN )
2,190 |
685 |
685 |
2,190 |
515 |
515 |
( 9.7 ) |
( 3.0 ) |
( 3.0 ) |
( 9.7 ) |
( 2.3 ) |
( 2.3 ) |
4,870 |
1,040 |
545 |
4,635 |
1,065 |
555 |
( 21.7 ) |
( 4.6 ) |
( 2.4 ) |
( 20.6 ) |
( 4.7 ) |
( 2.5 ) |
8,430 |
2,135 |
1,535 |
8,905 |
1,740 |
1,250 |
( 37.5 ) |
( 9.5 ) |
( 6.8 ) |
( 39.6 ) |
( 7.7 ) |
( 5.6 ) |
13,150 |
3,225 |
1,480 |
14,125 |
3,330 |
1,530 |
( 58.5 ) |
( 14.3 ) |
( 6.6 ) |
( 62.8 ) |
( 14.8 ) |
( 6.8 ) |
19,000 |
5,130 |
2,205 |
18,035 |
4,180 |
1,795 |
( 84.5 ) |
( 22.8 ) |
( 9.8 ) |
( 80.2 ) |
( 18.6 ) |
( 8.0 ) |
1 Hilti KB-TZ2 carbon steel and stainless steel anchors are to be considered ductile steel elements . 2 Tensile = ϕ A se , N ƒ uta as noted in ACI 318-19 17.6.1.2 . 3 Shear values determined by static shear tests with ϕV sa
≤ ϕ 0.60 A se , V ƒ uta as noted in ACI 318-19 17.7.1.2b .
4 Seismic shear values determined by seismic shear tests with ϕV sa , eq ≤ ϕV sa
≤ ϕ 0.60 A se , V ƒ uta as noted in ACI 318-19 17.7.1.2b .
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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