Table 8 — Hilti KWIK HUS in the soffit of uncracked lightweight concrete over metal deck 1 , 2 , 3 , 4 , 5 , 6 , 7 Installation in lower flute
Installation in upper flute
Nominal anchor diameter
3 / 8
1 / 2
5 / 8
3 / 4
Nominal embed . in . ( mm )
Tension - фN n Shear - фV n
Tension - фN n Shear - фV n ƒ ' c = 3,000 psi ƒ ' c
= 4,000 psi ƒ ' c = 3,000 psi ƒ ' c
= 4,000 psi ƒ ' c = 3,000 psi ƒ ' c
= 4,000 psi ƒ ' c = 3,000 psi ƒ ' c
= 4,000 psi lb ( kN ) lb ( kN ) lb ( kN ) lb ( kN ) lb ( kN ) lb ( kN ) lb ( kN ) lb ( kN )
1-5 / 8 835 965 1,000 1,000 660 760 2,360 2,360 ( 41 ) ( 3.7 ) ( 4.3 ) ( 4.4 ) ( 4.4 ) ( 2.9 ) ( 3.4 ) ( 10.5 ) ( 10.5 ) 2-1 / 2 1,455 1,680 905 905 1,900 2,195 3,655 3,655 ( 64 ) ( 6.5 ) ( 7.5 ) ( 4.0 ) ( 4.0 ) ( 8.5 ) ( 9.8 ) ( 16.3 ) ( 16.3 ) 3-1 / 4 2,550 2,945 2,165 2,165 ( 83 ) ( 11.3 ) ( 13.1 ) ( 9.6 ) ( 9.6 ) n / a n / a n / a n / a
2-1 / 4 850 980 965 965 905 1,045 4,710 4,710 ( 57 ) ( 3.8 ) ( 4.4 ) ( 4.3 ) ( 4.3 ) ( 4.0 ) ( 4.6 ) ( 21.0 ) ( 21.0 ) 3 1,990 2,300 1,750 1,750 ( 76 ) ( 8.9 ) ( 10.2 ) ( 7.8 ) ( 7.8 ) 4-1 / 4 3,485 4,025 2,155 2,155 ( 108 ) ( 15.5 ) ( 17.9 ) ( 9.6 ) ( 9.6 ) 3-1 / 4 2,715 3,135 2,080 2,080 ( 83 ) ( 12.1 ) ( 13.9 ) ( 9.3 ) ( 9.3 ) 5 6,170 7,125 2,515 2,515
( 127 ) ( 27.4 ) ( 31.7 ) ( 11.2 ) ( 11.2 ) 4 2,715 3,135 2,255 2,255
( 102 ) ( 12.1 ) ( 13.9 ) ( 10.0 ) ( 10.0 ) n / a n / a n / a n / a
n / a n / a n / a n / a
n / a n / a n / a n / a
n / a n / a n / a n / a
n / a n / a n / a n / a
1 See section 3.1.8 to convert design strength value to ASD value . 2 Linear interpolation between embedment depths and concrete compressive strengths is not permitted . 3 Tabular value is for one anchor per flute . Minimum spacing along the length of the flute is 3 x h nom
( nominal embedment ).
4 Tabular values are lightweight concrete and no additional reduction factor is needed . 5 No additional reduction factors for spacing or edge distance need to be applied . 6 Comparison to steel values in table 3 is not required . Values in tables 8 control . 7 Tabular values are for static loads only . Seismic design is not permitted for uncracked concrete .
398 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