Anchor Fastening Technical Guide , Edition 22
INSTALLATION PARAMETERS
Figure 1 — Hilti KWIK HUS anchor installation details
Table 1 — Hilti KWIK HUS specifications |
|
|
|
|
Nominal anchor diameter |
|
|
Setting information |
Symbol |
Units |
3 / 8 |
1 / 2 |
5 / 8 |
3 / 4 |
Nominal bit diameter |
d bit
|
in . |
3 / 8 |
1 / 2 |
5 / 8 |
3 / 4 |
Fixture hole diameter |
d h
|
in . |
1 / 2 |
5 / 8 |
3 / 4 |
7 / 8 |
Installation torque 1
|
T inst
|
ft-lb |
40 |
45 |
85 |
95 |
Maximum impact wrench torque rating 2
|
T impact , max
|
ft-lb |
114 |
450 |
137 |
450 |
450 |
450 |
Nominal embedment |
h nom
|
in . |
1-5 / 8 |
2-1 / 2 |
3-1 / 4 |
2-1 / 4 |
3 |
4-1 / 4 |
3-1 / 4 |
5 |
4 |
6-1 / 4 |
Effective embedment |
h ef
|
in . |
1.11 |
1.86 |
2.20 |
1.52 |
2.16 |
3.22 |
2.39 |
3.88 |
2.92 |
4.84 |
Minimum hole depth |
h o
|
in . |
1-7 / 8 |
2-3 / 4 |
3-1 / 2 |
2-5 / 8 |
3-3 / 8 |
4-5 / 8 |
3-5 / 8 |
5-3 / 8 |
4-3 / 8 |
6-5 / 8 |
Critical edge distance c ac in . 2.50 3.12 3.74 2.75 3.70 5.25 3.63 5.81 4.41 7.28
Minimum spacing at critical edge distance s min , cac in . 2.25 3 4
Minimum edge distance c min in . 1.50 1.75
3.3.10
Minimum spacing at minimum edge distance s min in . 3 4
Minimum concrete thickness h min in . 3-1 / 4 4 4-7 / 8 3-3 / 4 4-3 / 4 6-3 / 4 5 7 6 8-1 / 8 Wrench size - in . 9 / 16 3 / 4 15 / 16 1-1 / 8 Effective tensile stress area A se in 2 0.086 0.161 0.268 0.392 Minimum specified ultimate strength f uta psi 107,120 97,140 90,180 81,600
1 T inst applies to installations using a calibrated torque wrench .
2 Because of variability in measurement procedures , the published torque of an impact tool may not correlate properly with the above setting torques . Over-torquing can damage the anchor and / or reduce its holding capacity .
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.10 KWIK HUS ( KH ) CARBON STEEL SCREW 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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