Direct Fastening Technical Guide , Edition 24
Table 8 — Diaphragm strength ( S ) equation variable values
Deck type 3
B
BI
B or BI
Min . deck tensile ( yield ) strength , ksi
65 ( 50 ) 4
65 ( 50 ) 4
92 ( 80 )
65 ( 50 ) 4
65 ( 50 ) 4
45 or 92 ( 33 or 80 )
Configuration
Frame fastener base material thickness , in .
X-HSN 24 1 / 8 ≤ t f
< 3 / 16
X-HSN 24 3 / 16 ≤ t f
≤ 3 / 8 X-ENP-19
t f
≥ 1 / 4
S-RT5 + M9 1 / 8 ≤ t f
< 3 / 16
S-RT5 + M9 3 / 16 ≤ t f
≤ 3 / 8
S-RT5 + M9 1 / 8 ≤ t f
< 3 / 16
S-RT5 + M9 3 / 16 ≤ t f
≤ 3 / 8
X-HSN 24 1 / 8 ≤ t f
< 3 / 16
X-HSN 24 3 / 16 ≤ t f
≤ 3 / 8 X-ENP-19
t f
≥ 1 / 4
X-HSN 24 1 / 8 ≤ t f
< 3 / 16
X-HSN 24 3 / 16 ≤ t f
≤ 3 / 8
S-RT5 + M9 1 / 8 ≤ t f
< 3 / 16
S-RT5 + M9 3 / 16 ≤ t f
≤ 3 / 8
S-RT5 + M9 1 / 8 ≤ t f
< 3 / 16
S-RT5 + M9 3 / 16 ≤ t f
≤ 3 / 8
S-MD 12-24x1-5 / 8 M HWH5 0.0598 ≤ t f
< 1 / 8
S-MD 12-24x1-5 / 8 M HWH5 1 / 8 ≤ t f
≤ 1 / 4
X-HSN 24 1 / 8 ≤ t f
≤ 3 / 8 X-ENP-19
t f
≥ 1 / 4
S-MD 12-24x1-5 / 8 M HWH5 0.0598 ≤ t f
≤ 1 / 4
22 ( 0.0295 )
Deck gauge ( inches )
20 ( 0.0358 )
18 ( 0.0474 )
16 ( 0.0598 )
Sidelap connector 1 , 2 |
P , lb
P , lb nf ns
Correlation
P , lb
P , lb
|
nf ns
Correlation
P , lb
P , lb
|
nf ns
Correlation
P , lb
P , lb
|
nf ns
Correlation
|
|
factor , c |
factor , c |
factor , c |
factor , c |
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti # 10 HWH Screw
Hilti # 10 HWH Screw
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti SLC
Hilti # 10 HWH Screw
Hilti # 10 HWH Screw
Hilti SLC
Hilti SLC
Hilti # 10 HWH Screw
Hilti # 10 HWH Screw
Hilti # 10 HWH Screw
1357 844 1824 1260 1865 1701 - - 1.184 1.201 1.233 - 1590 844 2107 1260 2663 1701 3035 2024 1.149 1.127 1.087 1.044 1597 844 2112 1260 2764 1701 3079 2024 1.315 1.259 1.156 1.046 1357 844 1824 1260 1865 1701 - - 1.184 1.201 1.233 - 1590 844 2107 1260 2663 1701 3035 2024 1.149 1.127 1.087 1.044 1489 598 5 1795 799 5 2348 1217 5 - - 1.000 1.000 1.000 - 1489 598 5 1795 799 5 2348 1217 5 2924 1725 5 1.000 1.000 1.000 1.000 1357 844 1712 1111 1865 1701 - - 1.155 1.172 1.203 - 1941 954 2208 1341 2698 1859 3095 2343 1.052 1.054 1.058 1.062 1964 954 2165 1341 3022 1859 3577 2343 1.197 1.166 1.108 1.046 1357 844 1712 1111 1865 1591 - - 1.184 1.201 1.233 - 1516 882 1712 1111 2450 1591 2553 2051 1.316 1.264 1.168 1.066 1357 844 1712 1111 1865 1591 - - 1.184 1.201 1.233 - 1516 882 1712 1111 2450 1591 2553 2051 1.316 1.264 1.168 1.066 1489 598 5 1795 799 5 2348 1217 5 - - 1.000 1.000 1.000 - 1489 598 5 1795 799 5 2348 1217 5 2924 1725 5 1.000 1.000 1.000 1.000 1016 844 1233 1260 1632 1701 1860 2024 1.000 1.000 1.000 1.000 1193 844 1661 1260 1860 1701 1860 2024 1.000 1.000 1.000 1.000 1489 598 5 1795 799 5 2348 1217 5 2924 1725 5 1.000 1.000 1.000 1.000 1603 598 5 1933 799 5 2529 1217 5 3149 1725 5 1.000 1.000 1.000 1.000 1193 633 1661 769 1860 1018 1860 1284 1.000 1.000 1.000 1.000
1 Sidelap connector spacing must meet the requirements of Table 10 . 2 Reference Table 3 and Section 3.5.6 for more information on the proper selection of Hilti Sidelap Connectors ( SLC ). 3 Reference ICC-ES ESR-2776 for Verco PLB deck and VSC2 sidelap connectors 4 For steel deck with minimum deck strength of 55 ( 40 ) Tensile , F u
, ( Yield , F y ) ksi , the corresponding correlation factors ( c ) must be calculated by applying a reduction factor of 0.989 .
5 For steel deck with minimum deck strength of 55 ( 40 ) Tensile , F u
, ( Yield , F y ) ksi , the corresponding sidelap connector strength must be calculated by applying a reduction factor of 0.85 .
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