Direct Fastening Technical Guide , Edition 22
3.2.9.3 TECHNICAL DATA
Allowable loads in normalweight concrete 1 , 2
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Concrete compressive strength |
Fastener |
Shank diameter in . ( mm ) |
Minimum embedment in . ( mm ) |
Tension lb ( kN )
2000 psi 4000 psi 6000 psi
Shear lb ( kN )
Tension lb ( kN )
Shear lb ( kN )
Tension lb ( kN )
Shear lb ( kN )
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X-C 22 P8TH 0.138 ( 3.5 ) 3 / 4 ( 19.0 ) 55 ( 0.24 ) 130 ( 0.58 ) 90 ( 0.40 ) 170 ( 0.76 ) 100 ( 0.44 ) 200 ( 0.89 ) X-C G2 0.108 ( 2.75 ) 3 / 4 ( 19.0 ) 110 ( 0.49 ) 190 ( 0.85 ) 110 ( 0.49 ) 190 ( 0.85 ) 110 ( 0.49 ) 190 ( 0.85 )
X-C G3 X-C B3
X-C 39 G2 X-C 39 G3
X-P 17 G2 X-P 20 G2 X-P G3 X-P B3
0.118 ( 3.0 ) 3 / 4 ( 19.0 ) 110 ( 0.49 ) 190 ( 0.85 ) 110 ( 0.49 ) 190 ( 0.85 ) 110 ( 0.49 ) 190 ( 0.85 )
0.101 ( 2.6 )
0.118 ( 3.0 )
5 / 8 ( 16.0 ) 50 ( 0.22 ) 80 ( 0.36 ) 50 ( 0.22 ) 80 ( 0.36 ) - - 1 ( 25.0 ) 60 ( 0.27 ) 100 ( 0.44 ) 60 ( 0.27 ) 100 ( 0.44 ) - - 5 / 8 ( 16.0 ) - - 50 ( 0.22 ) 120 ( 0.53 ) 50 ( 0.22 ) 90 ( 0.40 )
3 / 4 ( 19.0 ) 80 ( 0.36 ) 120 ( 0.53 ) 50 ( 0.22 ) 120 ( 0.53 ) 50 ( 0.22 ) 90 ( 0.40 )
1 The tabulated allowable load values are for the low-velocity fasteners only , using a safety factor that is greater than or equal to 5.0 , calculated in accordance with ICC-ES AC70 . Wood or steel members connected to the substrate must be investigated in accordance with accepted design criteria . 2 Multiple fasteners are recommended for any attachment .
Allowable loads in minimum f ' c = 3000 psi structural lightweight concrete 1 , 3
Fastener
Shank diameter in . ( mm )
Fastener location :
Minimum embedment in . ( mm )
Installed into concrete
Allowable loads lb ( kN )
Installed through steel deck panel into concrete 2 Upper flute Lower flute Upper flute Lower flute
Load direction : Tension Shear Tension Shear
Minimum required concrete thickness above deck panel in .
X-C20 THP 0.138 ( 3.5 ) 5 / 8 ( 16 ) 55 ( 0.24 ) 110 ( 0.49 ) - 45 ( 0.20 ) 285 ( 1.27 ) 285 ( 1.27 ) 3-1 / 4 X-C22P8TH 0.138 ( 3.5 ) 3 / 4 ( 19 ) 120 ( 0.53 ) 220 ( 0.98 ) 120 ( 0.53 ) 95 ( 0.42 ) 260 ( 1.16 ) 260 ( 1.16 ) 3-1 / 4
X-C G2 0.108 ( 2.75 )
X-C G3 X-C B3
X-P 17 G2 X-P 20 G2 X-P G3 X-P B3
0.118 ( 3.0 )
3 / 4 ( 19 ) 110 ( 0.49 ) 140 ( 0.62 ) 75 ( 0.33 ) 85 ( 0.38 ) 175 ( 0.78 ) 215 ( 0.96 ) 2-1 / 2 1 ( 25 ) 170 ( 0.76 ) 220 ( 0.98 ) 155 ( 0.69 ) 160 ( 0.71 ) 255 ( 1.13 ) 315 ( 1.40 ) 3 3 / 4 ( 19 ) 115 ( 0.51 ) 140 ( 0.62 ) 75 ( 0.33 ) 85 ( 0.38 ) 175 ( 0.78 ) 215 ( 0.96 ) 2-1 / 2 1 ( 25 ) 170 ( 0.76 ) 220 ( 0.98 ) 155 ( 0.69 ) 160 ( 0.71 ) 255 ( 1.13 ) 315 ( 1.40 ) 3-1 / 4
0.118 ( 3.0 ) 5 / 8 ( 16 ) 60 ( 0.27 ) 140 ( 0.62 ) 60 ( 0.27 ) 60 ( 0.27 ) 175 ( 0.78 ) 215 ( 0.96 ) 2-1 / 2
1 The tabulated allowable load values are for the low-velocity fasteners only , using a safety factor that is greater than or equal to 5.0 , calculated in accordance with ICC-ES AC70 . Wood or steel members connected to the substrate must be investigated in accordance with accepted design criteria .
2 The steel deck profile is 3 ” deep composite floor deck with a thickness of 20 gauge ( 0.0358 ”). Figure 1 ( Section 3.2.1.6 ) shows the nominal flute dimensions , fastener locations , and load orientations for the deck profile .
3 Multiple fasteners are recommended for any attachment .
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