Table 15 — Hilti KWIK HUS-EZ I and KWIK HUS-EZ E in the soffit of uncracked lightweight concrete over metal deck 1 , 2 , 3 , 4 , 5 , 6 , 7
Nominal anchor diameter in .
1 / 4
1 / 4
3 / 8
Nominal internal thread diameter in .
1 / 4-20 UNC
3 / 8-16 UNC
1 / 2-13 UNC
Nominal embed . depth in . ( mm ) ƒ ' c
= 20 MPa ( 2,900 psi ) kN
Installation in lower flute Installation in upper flute
Tension - N r Shear - V r
Tension - N r Shear - V r ƒ ' c
= 30 MPa ( 4,350 psi ) kN ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN
1-5 / 8 585 660 720 810 ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN
( 41 ) ( 2.6 ) ( 2.9 ) 475 475 ( 3.2 ) ( 3.6 ) 560 560 2-1 / 2 1,200 1,470 ( 2.1 ) ( 2.1 ) 1,255 1,535 ( 2.5 ) ( 2.5 ) ( 64 ) ( 5.3 ) ( 6.5 ) ( 5.6 ) ( 6.8 ) 1-5 / 8 585 660 720 810 ( 41 ) ( 2.6 ) ( 2.9 ) 565 565 ( 3.2 ) ( 3.6 ) 845 845 2-1 / 2 1,200 1,470 ( 2.5 ) ( 2.5 ) 1,255 1,535 ( 3.8 ) ( 3.8 ) ( 64 ) ( 5.3 ) ( 6.5 ) ( 5.6 ) ( 6.8 ) 2-1 / 8 1,100 1,345 1,315 1,315 1,865 2,280 2,015 2,015 ( 54 ) ( 4.9 ) ( 6.0 ) ( 5.8 ) ( 5.8 ) ( 8.3 ) ( 10.1 ) ( 9.0 ) ( 9.0 )
Table 16 — Hilti KWIK HUS-EZ I and KWIK HUS-EZ E in the soffit of cracked lightweight concrete over metal deck 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
Nominal anchor diameter in .
1 / 4
1 / 4
3 / 8
Nominal internal thread diameter in .
1 / 4-20 UNC
3 / 8-16 UNC
1 / 2-13 UNC
Nominal embed . depth in . ( mm ) ƒ ' c
= 20 MPa ( 2,900 psi ) kN
Installation in lower flute Installation in upper flute
Tension - N r Shear - V r
Tension - N r Shear - V r ƒ ' c
= 30 MPa ( 4,350 psi ) kN ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN
1-5 / 8 300 340 365 415 ƒ ' c
= 20 MPa ( 2,900 psi ) kN ƒ ' c
= 30 MPa ( 4,350 psi ) kN
( 41 ) ( 1.3 ) ( 1.5 ) 475 475 ( 1.6 ) ( 1.8 ) 560 560 2-1 / 2 595 730 ( 2.1 ) ( 2.1 ) 625 765 ( 2.5 ) ( 2.5 ) ( 64 ) ( 2.6 ) ( 3.2 ) ( 2.8 ) ( 3.4 ) 1-5 / 8 300 340 365 415 ( 41 ) ( 1.3 ) ( 1.5 ) 565 565 ( 1.6 ) ( 1.8 ) 845 845 2-1 / 2 595 730 ( 2.5 ) ( 2.5 ) 625 765 ( 3.8 ) ( 3.8 ) ( 64 ) ( 2.6 ) ( 3.2 ) ( 2.8 ) ( 3.4 ) 2-1 / 8 780 955 1,315 1,315 1,305 1,595 2,015 2,015 ( 54 ) ( 3.5 ) ( 4.2 ) ( 5.8 ) ( 5.8 ) ( 5.8 ) ( 7.1 ) ( 9.0 ) ( 9.0 )
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 6 3 / 8 inches . 4 Tabular value is for 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 of the tabular values to the steel strength is not necessary . Tabular values control . 7 Tabular values are for static loads only . For seismic conditions α N , seis
= 0.75 8 For seismic shear , an additional factor must be applied to the cracked concrete tabular values for seismic conditions : α v , seis
, = 0.85
See Section 3.1.8 for additional information on seismic applications .
ALLOWABLE STRESS DESIGN FOR FM SPRINKLER SYSTEMS
Table 17 — Hilti KWIK HUS-EZ I and KWIK HUS-EZ E tested load values for FM approval for automatic sprinkler systems 1
Anchor diamenter in .
Hanger rod size
1 / 4 3 / 8-16 UNC
Nominal embedment in .
1-5 / 8 2-1 / 2
FM tension test load lb .
FM maximum pipe diameter in .
1,475 4
3 / 8 1 / 2-13 UNC 2-1 / 8 3,800 8
1 Tested in accordance with FM Approval Standard for Pipe Hanger Components for Automatic Sprinklers Systems Class Numbers 1951 , 1952 and 1953 .
374 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.8 KWIK HUS-EZ I AND KWIK HUS-EZ E 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